release: 0.97.0 (feature/e30-app-in-hungarian)

- Person page: a bio ask that fails says so with a retry instead of reading as 'no biography'.
- Show page: the summary is a ClampedText (5 lines + More), like the person and collection pages;
  one More/Less pair (plex.textMore/textLess) for all three.
- Channels: a re-slotted row is placed in the language the server orders by (the stored
  preference, else English), not the UI's guess.
- A skipped run's body is only the reason (its title already says skipped).
- HU: Behúzási kvótatartalék; Eseménynapló ürítve / az eseménynaplót; indok; közvetlenül
  játszható / közvetlen közvetítés in the Plex hints.
- Tests: ClampedText re-measures on a resize, the show summary clamp, serverOrderLang.

CHANGELOG.md

@@ -7,6 +7,17 @@ edit the release notes and re-run the generator.
 
 Upgrading, pinning a version and rolling back: [docs/self-hosting.md](docs/self-hosting.md#upgrading).
 
+## 0.97.0 — 2026-10-01
+
+### New
+
+- The app speaks Hungarian throughout: Plex genres and statuses, numbers, units and A→Z order follow your language.
+- Person pages show a Hungarian biography where TMDB has one, and open faster, with headshots kept on the server.
+
+### Fixed
+
+- Smaller fixes to wording and the Plex pages.
+
 ## 0.96.0 — 2026-09-27
 
 ### New

CLAUDE.md

@@ -60,7 +60,7 @@ how it gets built. Concretely:
 
 `routes/*` (HTTP only: validation, auth-dependency, serialization) → domain packages `sync/`, `plex/`,
 `downloads/`, `youtube/`, `issues/` (shared by routes + scheduler + worker) → flat core (`auth`, `quota`,
-`sysconfig`, `state`, `audit`, `notifications`, `userscope`, `realtime`, `ratelimit`, `bodylimit`, `progress`,
+`sysconfig`, `state`, `audit`, `notifications`, `userscope`, `realtime`, `ratelimit`, `bodylimit`, `progress`, `collation`,
 `security`, `logs`, `logsink`, `diagnostics`, `debugsession`) → `models/db/config`. **Dependency direction is one-way: core never imports routes.**
 Frontend: `main.tsx` provider tree → `App.tsx` shell → `moduleRegistry` route-chunks → module
 components → the **platform layer `components/ui/`** (domain-free primitives: the popover engine and

VERSION

@@ -1 +1 @@
-0.96.0
+0.97.0

backend/.basedpyright/baseline.json

@@ -639,14 +639,6 @@
                     "lineCount": 1
                 }
             },
-            {
-                "code": "reportArgumentType",
-                "range": {
-                    "startColumn": 27,
-                    "endColumn": 33,
-                    "lineCount": 1
-                }
-            },
             {
                 "code": "reportArgumentType",
                 "range": {

backend/alembic/versions/0091_plex_tagline_hu.py

@@ -0,0 +1,27 @@
+"""add tagline_hu to plex_items + plex_shows — the HU overlay's tagline (E30 S1)
+
+Revision ID: 0091_plex_tagline_hu
+Revises: 0090_debug_session_draft
+Create Date: 2026-09-29
+
+The Hungarian overlay section lists a tagline beside the title and summary; the info page showed the
+English one to a Hungarian reader. NULL until the next overlay sync fills it (serving falls back to EN).
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0091_plex_tagline_hu"
+down_revision: str | None = "0090_debug_session_draft"
+branch_labels: str | None = None
+depends_on: str | None = None
+
+
+def upgrade() -> None:
+    op.add_column("plex_items", sa.Column("tagline_hu", sa.Text(), nullable=True))
+    op.add_column("plex_shows", sa.Column("tagline_hu", sa.Text(), nullable=True))
+
+
+def downgrade() -> None:
+    op.drop_column("plex_shows", "tagline_hu")
+    op.drop_column("plex_items", "tagline_hu")

backend/alembic/versions/0092_plex_person_biography_hu.py

@@ -0,0 +1,31 @@
+"""add biography_hu to plex_people — TMDB's Hungarian biography (E30 S4)
+
+Revision ID: 0092_plex_person_biography_hu
+Revises: 0091_plex_tagline_hu
+Create Date: 2026-09-29
+
+The person page showed a Hungarian reader the English biography although TMDB has a Hungarian one for
+most people. The person fetch now appends `translations` and keeps the Hungarian biography beside the
+English one. Already-enriched people are un-stamped, so their next page open refetches them once (the
+same lazy path as a first open) and fills it; until then the English biography stands in.
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0092_plex_person_biography_hu"
+down_revision: str | None = "0091_plex_tagline_hu"
+branch_labels: str | None = None
+depends_on: str | None = None
+
+
+def upgrade() -> None:
+    op.add_column("plex_people", sa.Column("biography_hu", sa.Text(), nullable=True))
+    op.execute(
+        "UPDATE plex_people SET tmdb_enriched_at = NULL "
+        "WHERE tmdb_person_id IS NOT NULL AND tmdb_enriched_at IS NOT NULL"
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("plex_people", "biography_hu")

backend/alembic/versions/0093_plex_person_known_for_votes.py

@@ -0,0 +1,29 @@
+"""re-fetch linked people — "Known for" ranked by votes, without guest visits (E30 S6)
+
+Revision ID: 0093_plex_person_known_for_votes
+Revises: 0092_plex_person_biography_hu
+Create Date: 2026-09-30
+
+A person's "Known for" pool was their credits ranked by TMDB popularity, so talk-show visits as
+themselves crowded out the films (Tom Cruise: 14 of 15 were talk shows, none in the library). The pool is
+now ranked by vote count, without guest visits, with directed works, and deeper. Already-enriched people
+are un-stamped so the people_enrich job fetches them again; their biography stays on the row meanwhile.
+"""
+
+from alembic import op
+
+revision: str = "0093_plex_person_known_for_votes"
+down_revision: str | None = "0092_plex_person_biography_hu"
+branch_labels: str | None = None
+depends_on: str | None = None
+
+
+def upgrade() -> None:
+    op.execute(
+        "UPDATE plex_people SET tmdb_enriched_at = NULL "
+        "WHERE tmdb_person_id IS NOT NULL AND tmdb_enriched_at IS NOT NULL"
+    )
+
+
+def downgrade() -> None:
+    pass  # the watermark only says "fetched"; a refetch under the old ranking is not worth undoing to

backend/alembic/versions/0094_plex_genres_hu_everywhere.py

@@ -0,0 +1,45 @@
+"""Hungarian genres on every Plex row, not only on overlaid ones (E30 review)
+
+Revision ID: 0094_plex_genres_hu_everywhere
+Revises: 0093_plex_person_known_for_votes
+Create Date: 2026-09-30
+
+The HU genre facets and filter read `genres_hu`, which only the overlay pass wrote — so a library with
+no HU twin, or a guid-less row, offered English genres a Hungarian filter could never match. The sync
+now writes `genres_hu` for every row (plex/sync.py `_apply_facet_fields`); this fills the rows it has
+not reached yet, from their own English list through the same map.
+"""
+
+import json
+
+import sqlalchemy as sa
+from alembic import op
+
+from app.plex.genres import hu_genres
+
+revision: str = "0094_plex_genres_hu_everywhere"
+down_revision: str | None = "0093_plex_person_known_for_votes"
+branch_labels: str | None = None
+depends_on: str | None = None
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+    for table in ("plex_items", "plex_shows"):
+        rows = conn.execute(
+            sa.text(
+                f"SELECT id, genres FROM {table} "
+                "WHERE genres_hu IS NULL AND jsonb_typeof(genres) = 'array'"
+            )
+        ).fetchall()
+        updates = [
+            {"id": rid, "g": json.dumps(hu)} for rid, genres in rows if (hu := hu_genres(genres))
+        ]
+        if updates:
+            conn.execute(
+                sa.text(f"UPDATE {table} SET genres_hu = CAST(:g AS jsonb) WHERE id = :id"), updates
+            )
+
+
+def downgrade() -> None:
+    pass  # derived from `genres`; the sync writes the same values again

backend/app/README.md

@@ -23,7 +23,8 @@ Three layers, by *who* runs the code — not by feature:
 3. **Flat `app/*.py` core modules — cross-cutting primitives.** `auth`, `sysconfig`, `quota`, `audit`,
    `notifications`, `userscope`, `realtime`, `ratelimit`, `progress`, `logs` (the one logging
    configuration), `logsink` (its `log_events` table), `diagnostics` (a user's consented log
-   level) and `debugsession` (a recording that tags its user's lines, E16), … are single-file primitives many layers import. They depend on nothing above them (a core
+   level), `debugsession` (a recording that tags its user's lines, E16) and `collation` (A→Z in the
+   reader's alphabet, E30), … are single-file primitives many layers import. They depend on nothing above them (a core
    module must never import a `routes/…` module).
 
 **Extraction trigger: the SECOND consumer.** Keep new logic inline in its first caller. The moment a

backend/app/collation.py

@@ -0,0 +1,39 @@
+"""Alphabetical order in the reader's language (E30 S3).
+
+Why not the database default: the Postgres image is Alpine, and musl's `en_US.utf8` collation is BYTE
+order — every accented initial sorted after "Z" ("Zorró < Életrajzi < Ötödik"), in every A→Z list the
+server orders. Postgres ships the ICU collations on the same image (dev, test, prod alike), so a text
+sort names one: Hungarian puts "Ö" after "O" and "Cs" after "Cu", English folds the accents in.
+
+`collated` wraps an ORDER BY expression — and because a keyset cursor compares with the SAME expression
+(`feedquery.sort_keys`), the cursor pages in the same order it sorted in. `sorted_words` orders a Python
+list the same way through the database, so a list built in Python matches one built in SQL exactly."""
+
+from typing import Any
+
+from sqlalchemy import SQLColumnExpression, column, func, select, values
+from sqlalchemy.orm import Session
+from sqlalchemy.sql.elements import ColumnElement
+from sqlalchemy.types import String
+
+from app.mailtext import normalize
+
+ICU: dict[str, str] = {"en": "en-x-icu", "hu": "hu-x-icu"}
+
+
+def collation(lang: str | None) -> str:
+    """The ICU collation for a UI language; anything unknown sorts as English."""
+    return ICU[normalize(lang)]
+
+
+def collated(expr: SQLColumnExpression[Any], lang: str | None) -> ColumnElement[Any]:
+    """`expr` compared in the reader's alphabet. Case-folded, so "apple" and "Apple" sit together."""
+    return func.lower(expr).collate(collation(lang))
+
+
+def sorted_words(db: Session, words: list[str], lang: str | None) -> list[str]:
+    """`words` in the reader's alphabetical order, by the same ICU collation as `collated`."""
+    if not words:
+        return []
+    w = values(column("w", String), name="words").data([(x,) for x in words])
+    return list(db.scalars(select(w.c.w).order_by(collated(w.c.w, lang), w.c.w)))

backend/app/config.py

@@ -366,6 +366,11 @@ class Settings(BaseSettings):
     tmdb_enrich_interval_min: int = 120
     # Titles fetched per TMDB enrichment run (TMDB is fast + generously rate-limited).
     tmdb_enrich_batch: int = 100
+    # How often the people job (E30 S6) fetches a batch of person bios from TMDB and portraits through Plex,
+    # in minutes, and how many of each per run: ~18k linked people at 300 per 10 min is about ten hours
+    # once, then only the newcomers.
+    people_enrich_interval_min: int = 10
+    people_enrich_batch: int = 300
 
     @property
     def allowed_email_set(self) -> set[str]:

backend/app/discover/hero.py

@@ -48,6 +48,7 @@ def pick(
     shelf: list[dict] | None = None,
     exclude: set[str] | None = None,
     start: int = 0,
+    lang: str,
 ) -> dict | None:
     """`{"tier": ..., "card": ...}`, or None when nothing at all fits.
 
@@ -70,8 +71,8 @@ def pick(
     skip = exclude or set()
 
     def _resume() -> dict | None:
-        for card in rails.continue_watching(db, user) if resume is None else resume:
-            playable = rails.playable(db, user.id, card)
+        for card in rails.continue_watching(db, user, lang=lang) if resume is None else resume:
+            playable = rails.playable(db, user.id, card, lang=lang)
             # Excluded on the card the USER saw (the show), not only on what it resolves to, so a
             # rerolled-past show does not come straight back as its own next episode.
             if cards.key(card) in skip or (playable is not None and cards.key(playable) in skip):
@@ -82,7 +83,7 @@ def pick(
 
     def _comfort() -> dict | None:
         if shelf is None:
-            own = pins.shelf(db, user, include_plex=rails.plex_available(db))
+            own = pins.shelf(db, user, include_plex=rails.plex_available(db), lang=lang)
         else:
             own = shelf
         for card in pins.playables(own):
@@ -93,7 +94,7 @@ def pick(
     def _surprise() -> dict | None:
         # A wider draw than the one card we need: the shuffle is seeded, so without the headroom an
         # excluded pick would leave the tier empty rather than move past it.
-        for card in rails.surprise(db, user, budget, seed, limit=SURPRISE_DRAW):
+        for card in rails.surprise(db, user, budget, seed, limit=SURPRISE_DRAW, lang=lang):
             if cards.key(card) not in skip:
                 return card
         return None

backend/app/discover/pins.py

@@ -170,7 +170,7 @@ class _Batch:
         return b
 
 
-def _shelf_card(db: Session, user: User, pin: ComfortPin, batch: _Batch) -> dict | None:
+def _shelf_card(db: Session, user: User, pin: ComfortPin, batch: _Batch, lang: str) -> dict | None:
     """One pin as a unified card with its resolved `next`. None when the pinned row has gone (the FK
     cascade removes the pin itself, so this is only the window between a delete and a refetch)."""
     card: dict | None = None
@@ -196,7 +196,7 @@ def _shelf_card(db: Session, user: User, pin: ComfortPin, batch: _Batch) -> dict
         if it is None:
             return None
         st = rollup.item_state_map(db, user.id, [it.id]).get(it.id)
-        card = cards.from_plex(leaf_card(it, st))
+        card = cards.from_plex(leaf_card(it, st, lang=lang))
         nxt = dict(card)  # a movie or a single episode plays itself
 
     elif pin.plex_show_id is not None:
@@ -204,8 +204,8 @@ def _shelf_card(db: Session, user: User, pin: ComfortPin, batch: _Batch) -> dict
         if sh is None:
             return None
         status = rollup.state_map(db, user.id, [sh.id]).get(sh.id, "new")
-        card = cards.from_plex(show_card(sh, status))
-        ep = queries.next_episode(db, user.id, sh.id)
+        card = cards.from_plex(show_card(sh, status, lang=lang))
+        ep = queries.next_episode(db, user.id, sh.id, lang=lang)
         nxt = cards.from_plex(ep) if ep else None
 
     elif pin.playlist_id is not None:
@@ -229,7 +229,7 @@ def _shelf_card(db: Session, user: User, pin: ComfortPin, batch: _Batch) -> dict
 _PLEX_COLUMNS = ("plex_item_id", "plex_show_id")
 
 
-def shelf(db: Session, user: User, *, include_plex: bool = True) -> list[dict]:
+def shelf(db: Session, user: User, *, include_plex: bool = True, lang: str) -> list[dict]:
     """The whole shelf, in the user's own order.
 
     `include_plex=False` is the Home surface with the deployment's Plex toggle off (the owner's call,
@@ -243,7 +243,7 @@ def shelf(db: Session, user: User, *, include_plex: bool = True) -> list[dict]:
         pins = [p for p in pins if all(getattr(p, c) is None for c in _PLEX_COLUMNS)]
     batch = _Batch.load(db, user, pins)
     for pin in pins:
-        card = _shelf_card(db, user, pin, batch)
+        card = _shelf_card(db, user, pin, batch, lang)
         if card is not None:
             out.append(card)
     return out

backend/app/discover/queries.py

@@ -40,7 +40,7 @@ from app.models import (
     VideoState,
 )
 from app.plex import rollup
-from app.plex.cards import leaf_card, movie_card, show_card
+from app.plex.cards import display_title, leaf_card, movie_card, show_card
 from app.plex.query import apply_show_state_filter, content_libs
 
 # How many rows a single rail may carry — Home's rails and the Plex module's Discover rails alike
@@ -221,7 +221,9 @@ def _unseen_movie_conds(uid: int):
     return ~seen
 
 
-def plex_in_progress(db: Session, uid: int, limit: int = RAIL_LIMIT) -> list[tuple[object, dict]]:
+def plex_in_progress(
+    db: Session, uid: int, limit: int = RAIL_LIMIT, *, lang: str
+) -> list[tuple[object, dict]]:
     """In-progress movies + partially-watched shows as (progressed_at, card).
 
     Mirrors `routes/plex/discover.py::_continue_watching` — same `PlexState` predicate for movies (a
@@ -249,7 +251,7 @@ def plex_in_progress(db: Session, uid: int, limit: int = RAIL_LIMIT) -> list[tup
             .limit(limit)
         )
         for it, st in db.execute(mq).all():
-            out.append((st.progress_updated_at, movie_card(it, st)))
+            out.append((st.progress_updated_at, movie_card(it, st, lang=lang)))
 
     if show_libs:
         prog = rollup.agg_subquery(db, uid, include_resumed=True).subquery()
@@ -263,12 +265,14 @@ def plex_in_progress(db: Session, uid: int, limit: int = RAIL_LIMIT) -> list[tup
         for sh, resumed_at in db.execute(
             sq.order_by(prog.c.resumed_at.desc().nullslast()).limit(limit)
         ).all():
-            out.append((resumed_at, show_card(sh, "in_progress")))
+            out.append((resumed_at, show_card(sh, "in_progress", lang=lang)))
 
     return out
 
 
-def plex_surprise(db: Session, uid: int, budget: str, seed: int, limit: int) -> list[dict]:
+def plex_surprise(
+    db: Session, uid: int, budget: str, seed: int, limit: int, *, lang: str
+) -> list[dict]:
     """Unseen playable movies inside the budget, in seeded-shuffle order.
 
     Movies only. A show is not a thing you can start playing, and resolving every candidate show to
@@ -300,14 +304,14 @@ def plex_surprise(db: Session, uid: int, budget: str, seed: int, limit: int) ->
         q = q.where(PlexItem.duration_s <= hi)
     items = db.execute(q).scalars().all()
     states = rollup.item_state_map(db, uid, [it.id for it in items])
-    return [movie_card(it, states.get(it.id)) for it in items]
+    return [movie_card(it, states.get(it.id), lang=lang) for it in items]
 
 
 # Watch states that take an episode out of the running for "what would play next".
 _DONE = ("watched", "hidden")
 
 
-def next_episode(db: Session, uid: int, show_id: int) -> dict | None:
+def next_episode(db: Session, uid: int, show_id: int, *, lang: str) -> dict | None:
     """What "put that show on" means: the episode in progress, else the first unwatched one, else the
     first — over the same `(season, episode)` broadcast ordering `detail.py::_episode_nav` uses.
 
@@ -357,5 +361,9 @@ def next_episode(db: Session, uid: int, show_id: int) -> dict | None:
     ep, st = pick
     show = db.get(PlexShow, show_id)
     return leaf_card(
-        ep, st, show_title=show.title if show else None, show_rk=show.rating_key if show else None
+        ep,
+        st,
+        show_title=display_title(show, lang) if show else None,
+        show_rk=show.rating_key if show else None,
+        lang=lang,
     )

backend/app/discover/rails.py

@@ -22,7 +22,7 @@ def plex_available(db: Session) -> bool:
     return sysconfig.get_bool(db, "plex_enabled")
 
 
-def playable(db: Session, uid: int, card: dict) -> dict | None:
+def playable(db: Session, uid: int, card: dict, *, lang: str) -> dict | None:
     """The thing that would actually START from this card — itself for anything with a runtime, and
     for a Plex SHOW the episode that is next (in progress, else the first unwatched, else the first).
 
@@ -40,11 +40,11 @@ def playable(db: Session, uid: int, card: dict) -> dict | None:
     sh = by_rating_key(db, PlexShow, card["id"])
     if sh is None:
         return None
-    ep = queries.next_episode(db, uid, sh.id)
+    ep = queries.next_episode(db, uid, sh.id, lang=lang)
     return cards.from_plex(ep) if ep else None
 
 
-def continue_watching(db: Session, user: User, limit: int = RAIL_LIMIT) -> list[dict]:
+def continue_watching(db: Session, user: User, limit: int = RAIL_LIMIT, *, lang: str) -> list[dict]:
     """One resume rail across both sources, most recently progressed first.
 
     A Plex SHOW enters as a show CARD — that is what the Plex rail shows, and it is the artwork the
@@ -57,17 +57,22 @@ def continue_watching(db: Session, user: User, limit: int = RAIL_LIMIT) -> list[
         (ts, cards.from_video(r)) for ts, r in queries.yt_in_progress(db, user, limit)
     ]
     if plex_available(db):
-        rows += [(ts, cards.from_plex(c)) for ts, c in queries.plex_in_progress(db, user.id, limit)]
+        rows += [
+            (ts, cards.from_plex(c))
+            for ts, c in queries.plex_in_progress(db, user.id, limit, lang=lang)
+        ]
     rows.sort(key=lambda r: r[0] or NO_TS, reverse=True)
     out = [card for _, card in rows[:limit]]
     # Resolve AFTER the slice: only the rows that survive it are worth a query.
     for card in out:
         if card["kind"] == "show":
-            card["next"] = playable(db, user.id, card)
+            card["next"] = playable(db, user.id, card, lang=lang)
     return out
 
 
-def surprise(db: Session, user: User, budget: str, seed: int, limit: int = 3) -> list[dict]:
+def surprise(
+    db: Session, user: User, budget: str, seed: int, limit: int = 3, *, lang: str
+) -> list[dict]:
     """The hero's draw pool: unseen things that fit the budget, from both sources under ONE seed.
 
     Interleaved rather than concatenated — the same alternation `routes/plex/discover.py` uses for its
@@ -83,7 +88,9 @@ def surprise(db: Session, user: User, budget: str, seed: int, limit: int = 3) ->
         (cards.from_video, queries.yt_surprise(db, user, budget, seed, limit)),
         (
             cards.from_plex,
-            queries.plex_surprise(db, user.id, budget, seed, limit) if plex_available(db) else [],
+            queries.plex_surprise(db, user.id, budget, seed, limit, lang=lang)
+            if plex_available(db)
+            else [],
         ),
     ]
     if seed % 2:

backend/app/feedquery.py

@@ -15,6 +15,7 @@ from datetime import date, datetime, timedelta, timezone
 from sqlalchemy import BigInteger, Select, and_, cast, false, func, or_, select
 from sqlalchemy.orm import Session, aliased
 
+from app.collation import collated
 from app.models import (
     LIVE_OR_UPCOMING,
     BlockedChannel,
@@ -478,8 +479,10 @@ def feed_years(db: Session, user: User, **params) -> list[dict]:
 # replaces OFFSET/LIMIT: deep scrolling no longer scans-and-discards skipped rows,
 # and the page boundary is stable even as the scheduler ingests new videos mid-scroll
 # (OFFSET would shift and duplicate/skip rows).
-def sort_keys(sort: str, seed: int, rank_expr=None) -> list[dict]:
+def sort_keys(sort: str, seed: int, rank_expr=None, lang: str | None = None) -> list[dict]:
+    """`lang` orders the title sorts in the reader's alphabet (`collation`); the other keys ignore it."""
     pub = {"expr": Video.published_at, "asc": False, "nullable": False, "kind": "dt"}
+    title = collated(Video.title, lang)
     table: dict[str, list[dict]] = {
         "newest": [pub],
         "oldest": [{**pub, "asc": True}],
@@ -491,10 +494,8 @@ def sort_keys(sort: str, seed: int, rank_expr=None) -> list[dict]:
         "duration_asc": [
             {"expr": Video.duration_seconds, "asc": True, "nullable": True, "kind": "num"}
         ],
-        "title": [{"expr": func.lower(Video.title), "asc": True, "nullable": True, "kind": "str"}],
-        "title_desc": [
-            {"expr": func.lower(Video.title), "asc": False, "nullable": True, "kind": "str"}
-        ],
+        "title": [{"expr": title, "asc": True, "nullable": True, "kind": "str"}],
+        "title_desc": [{"expr": title, "asc": False, "nullable": True, "kind": "str"}],
         "subscribers": [
             {"expr": Channel.subscriber_count, "asc": False, "nullable": True, "kind": "num"}
         ],

backend/app/models.py

@@ -1224,6 +1224,7 @@ class PlexShow(Base, TimestampMixin, UpdatedAtMixin):
     # Hungarian-metadata twin fields, written by the overlay sync (E5 S5). NULL = no HU twin matched,
     # so serving falls back to the EN columns. `people_text` is language-neutral, reused for both vectors.
     title_hu: Mapped[str | None] = mapped_column(String(512))
+    tagline_hu: Mapped[str | None] = mapped_column(Text)  # the HU overlay's tagline (E30)
     summary_hu: Mapped[str | None] = mapped_column(Text)
     genres_hu: Mapped[list | None] = mapped_column(JSONB(none_as_null=True))
     search_vector: Mapped[object | None] = mapped_column(
@@ -1385,6 +1386,7 @@ class PlexItem(Base, TimestampMixin, UpdatedAtMixin):
     # Hungarian-metadata twin fields, written by the overlay sync (E5 S5). NULL = no HU twin matched
     # (serving falls back to the EN columns). `people_text` is language-neutral, reused for both vectors.
     title_hu: Mapped[str | None] = mapped_column(String(512))
+    tagline_hu: Mapped[str | None] = mapped_column(Text)  # the HU overlay's tagline (E30)
     summary_hu: Mapped[str | None] = mapped_column(Text)
     genres_hu: Mapped[list | None] = mapped_column(JSONB(none_as_null=True))
     search_vector: Mapped[object | None] = mapped_column(
@@ -1415,7 +1417,8 @@ class PlexPerson(Base, TimestampMixin, UpdatedAtMixin):
     top few cast. Rows whose name no longer appears in ANY item's cast_names/directors (a library
     removal orphaned them) are pruned by the maintenance sweep, mirroring how Plex drops orphaned
     metadata. The filterable cast lives in plex_items/plex_shows.cast_names (self-cleaning with the
-    row); this table is ONLY the headshot cache."""
+    row); this table is the people's own facts: the headshot link, the TMDB link and the TMDB bio
+    (the headshot FILE lives in the image cache, filled by the people_enrich job)."""
 
     __tablename__ = "plex_people"
 
@@ -1425,11 +1428,15 @@ class PlexPerson(Base, TimestampMixin, UpdatedAtMixin):
     # TMDB person id, linked by name from a title's TMDB credits (E5 S2 lays the foundation; the /person
     # biography fetch + person-page render land in S6). NULL until a TMDB-enriched title names this person.
     tmdb_person_id: Mapped[int | None] = mapped_column(Integer)
-    # --- TMDB person enrichment (E5 S6): fetched from /person/{tmdb_person_id} the first time the person
-    #     page is opened, then SERVED FROM THE ROW. `tmdb_enriched_at` is the watermark (set even on a
+    # --- TMDB person enrichment (E5 S6): fetched from /person/{tmdb_person_id} by the people_enrich job
+    #     (E30 S6), or by the first person-page open the job hasn't reached, then SERVED FROM THE ROW. `tmdb_enriched_at` is the watermark (set even on a
     #     no-op fetch so it isn't retried every open). `known_for` = top combined-credits [{tmdb_id,
     #     media_type, title}], resolved to library rows by guid at serve time (like recommendations). ---
     biography: Mapped[str | None] = mapped_column(Text)
+    # TMDB's Hungarian biography (E30 S4), from the same request's `translations`; a Hungarian reader is
+    # served it, and the instance-language `biography` when TMDB has none. Birthplace, aliases and
+    # keywords have no Hungarian on TMDB, so they stay in the instance language.
+    biography_hu: Mapped[str | None] = mapped_column(Text)
     birthday: Mapped[str | None] = mapped_column(String(10))  # "YYYY-MM-DD", served as-is
     deathday: Mapped[str | None] = mapped_column(String(10))
     place_of_birth: Mapped[str | None] = mapped_column(Text)

backend/app/plex/cards.py

@@ -15,20 +15,35 @@ def _art_url(rating_key: str, art_key: str | None) -> str | None:
 
 
 # Card hover-overview: a short synopsis for the reveal panel, trimmed so a strip/related row of cards
-# stays a few hundred bytes each rather than carrying full synopses. (These non-grid card paths serve
-# the EN summary/rating; the main grid coalesces the HU twin in browse.unified_library.)
+# stays a few hundred bytes each rather than carrying full synopses.
 def _card_summary(summary: str | None) -> str | None:
     return (summary or "")[:300] or None
 
 
-def movie_card(it: PlexItem, st: PlexState | None) -> dict:
+def norm_lang(lang: str | None) -> str:
+    """The overlay has an EN base + an optional HU twin; anything other than `hu` serves EN."""
+    return "hu" if lang == "hu" else "en"
+
+
+# Every card speaks the reader's language (E30): `lang="hu"` serves the HU overlay twin's title and
+# summary, falling back to EN where a row has none — the same rule as browse.unified_library's
+# `title_col`/`summary_col`. These rails once served English to a Hungarian reader.
+def display_title(row: PlexItem | PlexShow, lang: str) -> str:
+    return (row.title_hu or row.title) if lang == "hu" else row.title
+
+
+def display_summary(row: PlexItem | PlexShow, lang: str) -> str | None:
+    return (row.summary_hu or row.summary) if lang == "hu" else row.summary
+
+
+def movie_card(it: PlexItem, st: PlexState | None, *, lang: str) -> dict:
     return {
         "id": it.rating_key,
         "type": "movie",
-        "title": it.title,
+        "title": display_title(it, lang),
         "year": it.year,
         "rating": it.rating,
-        "summary": _card_summary(it.summary),
+        "summary": _card_summary(display_summary(it, lang)),
         "duration_seconds": it.duration_s,
         "thumb": f"/api/plex/image/{it.rating_key}",
         "art": _art_url(it.rating_key, it.art_key),
@@ -39,14 +54,14 @@ def movie_card(it: PlexItem, st: PlexState | None) -> dict:
     }
 
 
-def show_card(sh: PlexShow, status: str = "new") -> dict:
+def show_card(sh: PlexShow, status: str = "new", *, lang: str) -> dict:
     return {
         "id": sh.rating_key,
         "type": "show",
-        "title": sh.title,
+        "title": display_title(sh, lang),
         "year": sh.year,
         "rating": sh.rating,
-        "summary": _card_summary(sh.summary),
+        "summary": _card_summary(display_summary(sh, lang)),
         "thumb": f"/api/plex/image/{sh.rating_key}",
         "art": _art_url(sh.rating_key, sh.art_key),
         "season_count": sh.child_count,
@@ -55,12 +70,12 @@ def show_card(sh: PlexShow, status: str = "new") -> dict:
     }
 
 
-def episode_card(e: PlexItem, st: PlexState | None) -> dict:
+def episode_card(e: PlexItem, st: PlexState | None, *, lang: str) -> dict:
     return {
         "id": e.rating_key,
         "type": "episode",
-        "title": e.title,
-        "summary": e.summary,
+        "title": display_title(e, lang),
+        "summary": display_summary(e, lang),
         "season_number": e.season_number,
         "episode_number": e.episode_number,
         "duration_seconds": e.duration_s,
@@ -77,12 +92,15 @@ def leaf_card(
     st: PlexState | None,
     show_title: str | None = None,
     show_rk: str | None = None,
+    *,
+    lang: str,
 ) -> dict:
     """A playable-leaf card (movie or episode). Used by playlists, which can mix both kinds.
-    `show_rk` (the show's rating_key) lets the client group a playlist's episodes by show/season."""
+    `show_rk` (the show's rating_key) lets the client group a playlist's episodes by show/season.
+    `show_title` is the caller's, already in `lang` (see `display_title`)."""
     if it.kind == "episode":
-        card = episode_card(it, st)
+        card = episode_card(it, st, lang=lang)
         card["show_title"] = show_title
         card["show_id"] = show_rk
         return card
-    return movie_card(it, st)
+    return movie_card(it, st, lang=lang)

backend/app/plex/genres.py

@@ -0,0 +1,100 @@
+"""One Hungarian word per Plex genre (E30).
+
+Plex's Hungarian agent returns a MIXED vocabulary: some genres come back translated ("Dráma",
+"Vígjáték"), others stay English ("Action", "Adventure", "Biography"), and a title with no HU twin has
+only its English genres. The HU genre list therefore offered "Drama" beside "Dráma" and a dozen English
+words. This map sends every genre word we have met — English (Plex EN agent, TMDB, IMDb) or Plex's
+Hungarian — to the ONE word a Hungarian reader sees. The overlay sync writes it into `genres_hu`, and a
+genre filter is read through it too, so a saved filter still holding "Action" keeps matching "Akció".
+
+A word not in the map passes through unchanged: an unknown genre stays visible (in whatever language
+Plex gave it) rather than disappearing.
+"""
+
+from collections.abc import Iterable
+
+# Keys are matched case-insensitively (see `_BY_KEY`). The Hungarian values double as keys mapping to
+# themselves, so running a list through twice changes nothing.
+_HU: dict[str, str] = {
+    "Action": "Akció",
+    "Action & Adventure": "Akció és kaland",
+    "Adventure": "Kaland",
+    "Animation": "Animációs",
+    "Anime": "Anime",
+    "Biography": "Életrajzi",
+    "Children": "Gyerek",
+    "Comedy": "Vígjáték",
+    "Crime": "Bűnügyi",
+    "Documentary": "Dokumentum",
+    "Drama": "Dráma",
+    "Family": "Családi",
+    "Fantasy": "Fantasy",
+    "Film-Noir": "Film noir",
+    "Food": "Gasztronómia",
+    "Game Show": "Vetélkedő",
+    "Game-Show": "Vetélkedő",
+    "History": "Történelmi",
+    "Home and Garden": "Otthon és kert",
+    "Horror": "Horror",
+    "Indie": "Független",
+    "Kids": "Gyerek",
+    "Martial Arts": "Harcművészet",
+    "Mini-Series": "Minisorozat",
+    "Music": "Zenei",
+    "Musical": "Musical",
+    "Mystery": "Rejtély",
+    "News": "Hírek",
+    "Reality": "Valóságshow",
+    "Reality-TV": "Valóságshow",
+    "Romance": "Romantikus",
+    "Sci-Fi": "Sci-Fi",
+    "Sci-Fi & Fantasy": "Sci-Fi és fantasy",
+    "Science Fiction": "Sci-Fi",
+    "Short": "Rövidfilm",
+    "Soap": "Szappanopera",
+    "Sport": "Sport",
+    "Suspense": "Feszültség",
+    "Talk": "Talkshow",
+    "Talk Show": "Talkshow",
+    "Thriller": "Thriller",
+    "Travel": "Utazás",
+    "TV Movie": "TV film",
+    "War": "Háborús",
+    "War & Politics": "Háború és politika",
+    "Western": "Western",
+    # Plex's own Hungarian words, pinned to themselves (and to the spelling above where they differ).
+    "Akció": "Akció",
+    "Animációs": "Animációs",
+    "Bűnügyi": "Bűnügyi",
+    "Családi": "Családi",
+    "Dokumentum": "Dokumentum",
+    "Dokumentumfilm": "Dokumentum",
+    "Dráma": "Dráma",
+    "Életrajzi": "Életrajzi",
+    "Háborús": "Háborús",
+    "Kaland": "Kaland",
+    "Rejtély": "Rejtély",
+    "Romantikus": "Romantikus",
+    "Történelmi": "Történelmi",
+    "TV film": "TV film",
+    "Vígjáték": "Vígjáték",
+    "Zene": "Zenei",
+    "Zenei": "Zenei",
+}
+_BY_KEY = {k.casefold(): v for k, v in _HU.items()}
+
+
+def hu_genre(word: str) -> str:
+    """The Hungarian word for one genre; an unknown word comes back unchanged."""
+    return _BY_KEY.get(word.strip().casefold(), word)
+
+
+def hu_genres(words: Iterable[str] | None) -> list[str] | None:
+    """A genre list in Hungarian, in its first-seen order, each word once ("Drama" + "Dráma" → one
+    "Dráma"). None or empty stays None, like the listing's own `_tags`."""
+    out: list[str] = []
+    for w in words or ():
+        hu = hu_genre(w)
+        if hu not in out:
+            out.append(hu)
+    return out or None

backend/app/plex/imgcache.py

@@ -8,6 +8,9 @@ few hundred MB at most for a big library — acceptable, matching the download d
 The cache directory (``cache.CACHE_DIR``) is shared with the subtitle cache (see ``subtitles.py``).
 """
 
+import time
+from datetime import timedelta
+
 from fastapi import Response
 from sqlalchemy.orm import Session
 
@@ -56,6 +59,49 @@ def read(key: str) -> tuple[bytes, str] | None:
     return None
 
 
+def has(key: str) -> bool:
+    """A cached, non-empty file exists for `key` (a prefetch's cheap check — no read)."""
+    for ext, _ in _EXT_CT:
+        try:
+            if (CACHE_DIR / f"{key}.{ext}").stat().st_size > 0:
+                return True
+        # silent-ok: a miss, as in read().
+        except OSError:
+            pass
+    return False
+
+
+def drop(key: str) -> None:
+    """Remove `key`'s file, whatever its extension (a superseded variant). Best-effort."""
+    for ext, _ in _EXT_CT:
+        try:
+            (CACHE_DIR / f"{key}.{ext}").unlink(missing_ok=True)
+        # silent-ok: a leftover original only costs disk; the small twin is already written.
+        except OSError:
+            pass
+
+
+def mark_miss(key: str) -> None:
+    """Remember that `key`'s source could not be fetched (an empty `.miss` file; its mtime is when), so
+    a prefetch can leave a dead source alone for a while. Best-effort."""
+    try:
+        CACHE_DIR.mkdir(parents=True, exist_ok=True)
+        (CACHE_DIR / f"{key}.miss").touch()
+    # silent-ok: without the mark the dead source is only asked for again on the next run.
+    except OSError:
+        pass
+
+
+def missed_within(key: str, age: timedelta) -> bool:
+    """`key` was marked as a miss less than `age` ago."""
+    try:
+        mtime = (CACHE_DIR / f"{key}.miss").stat().st_mtime
+    # silent-ok: no mark (the usual case).
+    except OSError:
+        return False
+    return time.time() - mtime < age.total_seconds()
+
+
 def write(key: str, data: bytes, ct: str) -> None:
     ext = _CT_EXT.get((ct or "").split(";")[0].strip(), "jpg")
     try:

backend/app/plex/people.py

@@ -3,13 +3,23 @@ or show (cast_names + the people_text search blob + the plex_people headshot cac
 orphaned people. Used by BOTH the info-page lazy enrichment (routes.plex) and the background rich
 re-sync (plex.sync), so the two paths never diverge."""
 
-from urllib.parse import quote
+import hashlib
+import re
+from datetime import timedelta
+from typing import Literal
+from urllib.parse import quote, unquote
 
+import httpx
 from sqlalchemy import select, text
 from sqlalchemy.dialects.postgresql import insert as pg_insert
 from sqlalchemy.orm import Session
 
+from app import logs, sysconfig
 from app.models import PlexPerson
+from app.plex import imgcache
+from app.plex.client import PlexClient, PlexError, PlexNotConfigured
+
+log = logs.get_logger(__name__)
 
 # Cast/crew photos come from Plex's PUBLIC metadata CDN (no token). We proxy them (host-whitelisted)
 # so the user's browser makes no third-party request (privacy + self-host CSP friendliness).
@@ -19,9 +29,7 @@ PERSON_IMG_HOST = "https://metadata-static.plex.tv/"
 def person_thumb_url(thumb: str | None) -> str | None:
     """Proxied /person-image URL for a Plex CDN headshot, or None when it's missing / off-CDN."""
     t = str(thumb or "")
-    return (
-        f"/api/plex/person-image?u={quote(t, safe='')}" if t.startswith(PERSON_IMG_HOST) else None
-    )
+    return f"/api/plex/person-image?u={quote(t, safe='')}" if is_portrait_url(t) else None
 
 
 def cast_from_meta(meta: dict, limit: int = 24) -> list[dict]:
@@ -89,14 +97,23 @@ def enrich_row_people(db: Session, row, cast: list[dict]) -> bool:
     return dirty
 
 
+# Every credit reference: one person name per (movie/show, credit column). The ONE list of credit
+# columns, so the orphan prune and the enrichment order never disagree about who is credited.
+_CREDIT_COLUMNS = [
+    (table, col) for table in ("plex_items", "plex_shows") for col in ("cast_names", "directors")
+]
+
+
+def _credit_refs_sql(union: Literal["UNION", "UNION ALL"]) -> str:
+    return f" {union} ".join(
+        f"SELECT jsonb_array_elements_text({col}) FROM {table} WHERE jsonb_typeof({col}) = 'array'"
+        for table, col in _CREDIT_COLUMNS
+    )
+
+
 # The person names still referenced by ANY movie/show (cast OR directors). plex_people rows outside
 # this set are orphans left by a library removal.
-_REFERENCED_PEOPLE_SQL = """
-    SELECT jsonb_array_elements_text(cast_names) FROM plex_items WHERE jsonb_typeof(cast_names) = 'array'
-    UNION SELECT jsonb_array_elements_text(directors) FROM plex_items WHERE jsonb_typeof(directors) = 'array'
-    UNION SELECT jsonb_array_elements_text(cast_names) FROM plex_shows WHERE jsonb_typeof(cast_names) = 'array'
-    UNION SELECT jsonb_array_elements_text(directors) FROM plex_shows WHERE jsonb_typeof(directors) = 'array'
-"""
+_REFERENCED_PEOPLE_SQL = _credit_refs_sql("UNION")
 
 
 def prune_orphan_people(db: Session) -> int:
@@ -113,3 +130,152 @@ def prune_orphan_people(db: Session) -> int:
     )
     db.commit()
     return res.rowcount or 0
+
+
+# How often each person is credited across movies, shows and episodes (cast OR director) — the order the
+# people_enrich job works in, so the faces met most often are local first.
+_CREDIT_COUNTS_SQL = (
+    f"SELECT ref, count(*) AS n FROM ({_credit_refs_sql('UNION ALL')}) AS refs(ref) GROUP BY ref"
+)
+_NEEDS = {
+    # linked to TMDB, bio never fetched
+    "bio": "p.tmdb_person_id IS NOT NULL AND p.tmdb_enriched_at IS NULL",
+    # has a Plex headshot (whether it is cached is the disk's answer, not the row's)
+    "portrait": "p.photo_thumb IS NOT NULL",
+}
+
+
+def people_by_credits(
+    db: Session, need: Literal["bio", "portrait"], limit: int | None
+) -> list[int]:
+    """plex_people ids that `need` something, the most-credited first (ties by id)."""
+    rows = db.execute(
+        text(
+            f"SELECT p.id FROM plex_people p LEFT JOIN ({_CREDIT_COUNTS_SQL}) c ON c.ref = p.name "
+            f"WHERE {_NEEDS[need]} ORDER BY coalesce(c.n, 0) DESC, p.id"
+            + (" LIMIT :limit" if limit is not None else "")
+        ),
+        {"limit": limit} if limit is not None else {},
+    )
+    return [r[0] for r in rows]
+
+
+# --- Portraits (E30 S6) ---------------------------------------------------------------------------
+# A Plex CDN headshot is a full-size original (~170 KB on average, measured). Plex's photo transcoder
+# fits it into this box (~13 KB), which covers the largest place a portrait is drawn (the person page's
+# 6rem avatar) at 2x density and a raised text size. The box is part of the cache key, like a poster's:
+# a new box re-caches instead of serving a stale size. Only a resized image is ever written under it —
+# an original fetched without Plex keeps its own key, and goes once its small twin lands.
+PORTRAIT_BOX = 320
+# A headshot Plex answered "not found" for (a dead CDN file) is not asked for again this long, so a
+# few dead faces never hold up the rest of the prefetch.
+PORTRAIT_RETRY = timedelta(days=7)
+# The one shape a Plex CDN headshot has (…/7/people/<hash>.jpg): plain path segments, no query, no
+# fragment, no dot segment or empty segment (an HTTP client folds `a/../b` and the CDN `a//b` onto one
+# file). The person-image proxy takes nothing else, so it cannot be made to cache endless spellings of
+# one file (the image cache has no eviction). Used where a stored headshot is made, served and warmed.
+_SEGMENT = r"[A-Za-z0-9_-]+(?:\.[A-Za-z0-9_-]+)*"  # a name, dots only between its parts
+_PORTRAIT_URL = re.compile(re.escape(PERSON_IMG_HOST) + _SEGMENT + rf"(?:/{_SEGMENT})*")
+
+
+def is_portrait_url(url: str) -> bool:
+    return _PORTRAIT_URL.fullmatch(url) is not None
+
+
+def _portrait_keys(url: str) -> tuple[str, str]:
+    """(the resized portrait's key, the full-size original's key)."""
+    base = "person_" + hashlib.sha1(url.encode()).hexdigest()
+    return f"{base}_{PORTRAIT_BOX}", base
+
+
+def portrait_cached(url: str) -> tuple[bytes, str] | None:
+    """The cached portrait: the resized one, else an original kept from a time without Plex."""
+    small, original = _portrait_keys(url)
+    return imgcache.read(small) or imgcache.read(original)
+
+
+def cache_portrait(plex: PlexClient | None, url: str) -> tuple[bytes, str]:
+    """Fetch one CDN headshot and cache it. With a Plex client it is resized (the box key; the original
+    is removed); without one the original comes straight from the public CDN and is cached under its own
+    key, so the job still resizes it once Plex is there. Raises PlexError / httpx.HTTPError."""
+    small, original = _portrait_keys(url)
+    if plex is None:
+        with httpx.Client(timeout=10.0, follow_redirects=True) as c:
+            r = c.get(url)
+            r.raise_for_status()
+        data, ct = r.content, r.headers.get("content-type", "image/jpeg")
+        imgcache.write(original, data, ct)
+        return data, ct
+    data, ct = plex.image_bytes(url, PORTRAIT_BOX, PORTRAIT_BOX)
+    imgcache.write(small, data, ct)
+    imgcache.drop(original)
+    return data, ct
+
+
+def cdn_url(photo_thumb: str) -> str | None:
+    """The CDN url inside a stored proxied `/person-image?u=` value (see person_thumb_url)."""
+    _, _, q = photo_thumb.partition("?u=")
+    url = unquote(q)
+    return url if is_portrait_url(url) else None
+
+
+# Plex failing this many headshots in a row ends a run: it is Plex that is failing, not the files.
+_PLEX_DOWN_AFTER = 3
+# The statuses that mean the one file is gone.
+_DEAD = frozenset({404, 410})
+
+
+def warm_portraits(db: Session, limit: int) -> dict:
+    """Cache up to `limit` not-yet-cached headshots, the most-credited people first (E30 S6), so a
+    person's face comes from local disk. Needs Plex (the resize) and the Plex module on; without them
+    nothing is prefetched — full-size originals for every person would cost gigabytes. A headshot Plex
+    answers "not found" for is marked and left for PORTRAIT_RETRY; Plex failing in a row ends the run."""
+    if not sysconfig.get_bool(db, "plex_enabled"):
+        return {"cached": 0, "skipped": "disabled"}
+    try:
+        plex = PlexClient(db)
+    # silent-ok: no Plex server set up is a setting, not a failure; the run's result says "disabled".
+    except PlexNotConfigured:
+        return {"cached": 0, "skipped": "disabled"}
+    photos: dict[int, str] = {
+        pid: thumb
+        for pid, thumb in db.execute(
+            select(PlexPerson.id, PlexPerson.photo_thumb).where(PlexPerson.photo_thumb.is_not(None))
+        ).tuples()
+        if thumb
+    }
+    # `down` counts Plex failing in a row (any answer from Plex breaks it), `plex_failed` in all
+    done = dead = plex_failed = down = 0
+    with plex:
+        for pid in people_by_credits(db, "portrait", None):
+            if done + dead >= limit or down >= _PLEX_DOWN_AFTER:
+                break
+            url = cdn_url(photos.get(pid) or "")
+            if url is None:
+                continue
+            key = _portrait_keys(url)[0]
+            if imgcache.has(key) or imgcache.missed_within(key, PORTRAIT_RETRY):
+                continue
+            try:
+                cache_portrait(plex, url)
+                done, down = done + 1, 0
+            except PlexError as exc:
+                # "Not found" is Plex's answer about this one file (a dead CDN headshot: measured 404,
+                # the CDN itself says 403). Anything else — no answer, a refused token, a 5xx — is
+                # Plex failing, which must neither mark the file nor keep the run going.
+                cause = exc.__cause__
+                if isinstance(cause, httpx.HTTPStatusError) and cause.response.status_code in _DEAD:
+                    dead, down = dead + 1, 0  # Plex answered: it is up, the streak is broken
+                    imgcache.mark_miss(key)
+                else:
+                    plex_failed, down = plex_failed + 1, down + 1
+                log.warning(
+                    "a portrait could not be cached",
+                    extra=logs.event(
+                        "plex.people.portrait_failed",
+                        person_id=pid,
+                        reason=type(exc.__cause__).__name__,
+                    ),
+                )
+    failed = dead + plex_failed
+    return {"cached": done, **({"failed": failed} if failed else {})}

backend/app/plex/query.py

@@ -11,6 +11,7 @@ from sqlalchemy.dialects.postgresql import JSONB
 from sqlalchemy.orm import Session
 
 from app.models import PlexItem, PlexLibrary
+from app.plex.genres import hu_genre
 
 TS_CONFIG = "public.unaccent_simple"
 
@@ -183,7 +184,13 @@ def meta_filter_conds(model, p: dict, lang: str = "en") -> list:
     gsel = split_csv(p.get("genres"))
     if gsel:
         gcol = genres_col(model, lang)
-        gc = [gcol.contains([g]) for g in gsel]
+        if lang == "hu":
+            # The HU column holds one Hungarian word per genre (plex/genres.py), so a filter saved while
+            # it offered "Action" is read as "Akció" too. The word as picked still matches as well: a row
+            # the sync has not reached since keeps its English (or Plex's mixed) list until it does.
+            gc = [or_(*(gcol.contains([w]) for w in dict.fromkeys((hu_genre(g), g)))) for g in gsel]
+        else:
+            gc = [gcol.contains([g]) for g in gsel]
         conds.append(and_(*gc) if p.get("genre_mode") == "all" else or_(*gc))
     crs = split_csv(p.get("content_ratings"))
     if crs:

backend/app/plex/sync.py

@@ -15,6 +15,7 @@ dead `enabled` column) is a separate follow-up. Cast + intro/credit markers are
 item-detail/player path (P2), not here.
 """
 
+from collections.abc import Iterable
 from datetime import datetime, timezone
 
 from sqlalchemy import func, select
@@ -24,6 +25,7 @@ from app import logs, sysconfig
 from app.models import PlexCollection, PlexItem, PlexLibrary, PlexSeason, PlexShow
 from app.plex import detail, people
 from app.plex.client import PlexClient, PlexError, PlexNotConfigured
+from app.plex.genres import hu_genres
 from app.plex.lookups import by_rating_key
 
 log = logs.get_logger(__name__)
@@ -448,6 +450,10 @@ def _apply_facet_fields(row, meta: dict) -> None:
     row.studio = (meta.get("studio") or None) and str(meta.get("studio"))[:255]
     row.originally_available_at = _date(meta.get("originallyAvailableAt"))
     row.genres = _tags(meta, "Genre")
+    # Every row has Hungarian genres, not only one with an HU overlay twin (the overlay pass, which runs
+    # after this, puts the twin's own list over it): the HU genre facets and filter read this column,
+    # and an English word there could never match a filter read in Hungarian.
+    row.genres_hu = hu_genres(row.genres)
     row.directors = _tags(meta, "Director")
     # The listing carries only the top ~20 cast, so re-applying it would DOWNGRADE an already-enriched
     # full cast (up to 24, grown by the rich backfill/info-page enrich), silently breaking the
@@ -659,35 +665,72 @@ def _sync_overlay(
     db: Session, plex: PlexClient, lib: PlexLibrary, en_lib_id: int, stats: dict
 ) -> None:
     """Write an overlay section's Hungarian metadata onto its EN twin's rows, matched by guid. Creates
-    NO browsable rows — an overlay library is never listed on its own. Only title/summary/genres differ
-    by language; the language-neutral people_text feeds both search vectors.
+    NO browsable rows — an overlay library is never listed on its own. Only title/summary/tagline/genres
+    differ by language; the language-neutral people_text feeds both search vectors. A show section's
+    episodes are overlaid too (E30): the HU section lists every episode with its Hungarian title and
+    summary, and the episode rows live in the EN show library.
 
     This is a full RECONCILE: every guid-bearing EN row's HU fields are cleared first, then the HU
     section repopulates the matches — so an EN row whose HU twin vanished (or was re-guid'd) falls back
     to EN instead of keeping stale Hungarian metadata. HU items with no EN match are skipped."""
     if lib.kind == "movie":
-        rows = db.execute(
-            select(PlexItem).where(
-                PlexItem.library_id == en_lib_id,
-                PlexItem.kind == "movie",
-                PlexItem.guid.is_not(None),
+        passes = [
+            (
+                _TYPE_MOVIE,
+                select(PlexItem).where(
+                    PlexItem.library_id == en_lib_id,
+                    PlexItem.kind == "movie",
+                    PlexItem.guid.is_not(None),
+                ),
             )
-        ).scalars()
-        item_type = _TYPE_MOVIE
+        ]
     else:
-        rows = db.execute(
-            select(PlexShow).where(PlexShow.library_id == en_lib_id, PlexShow.guid.is_not(None))
-        ).scalars()
-        item_type = _TYPE_SHOW
+        passes = [
+            (
+                _TYPE_SHOW,
+                select(PlexShow).where(
+                    PlexShow.library_id == en_lib_id, PlexShow.guid.is_not(None)
+                ),
+            ),
+            (
+                _TYPE_EPISODE,
+                select(PlexItem).where(
+                    PlexItem.library_id == en_lib_id,
+                    PlexItem.kind == "episode",
+                    PlexItem.guid.is_not(None),
+                ),
+            ),
+        ]
+    for item_type, rows_q in passes:
+        _overlay_pass(db, plex, lib, item_type, db.execute(rows_q).scalars(), stats)
+    db.flush()
+
+
+def _overlay_pass(
+    db: Session,
+    plex: PlexClient,
+    lib: PlexLibrary,
+    item_type: int,
+    rows: Iterable[PlexItem] | Iterable[PlexShow],
+    stats: dict,
+) -> None:
+    """One kind of the overlay (movies, shows or episodes) — see `_sync_overlay`."""
     # guid -> the EN rows carrying it (a list: two editions of one film can share a guid; both overlay).
-    by_guid: dict[str, list] = {}
+    by_guid: dict[str, list[PlexItem | PlexShow]] = {}
     for r in rows:
-        by_guid.setdefault(r.guid, []).append(r)
+        if r.guid:  # the passes select guid-bearing rows only
+            by_guid.setdefault(r.guid, []).append(r)
     # Reconcile step: clear HU fields on all guid-bearing rows. Only rows that actually held HU data
     # become dirty (SQLAlchemy skips a no-net-change UPDATE), so this is cheap; matches are re-set below.
+    # The genres are the exception: every row gets Hungarian ones, from its HU twin or, lacking one, from
+    # its own English list — otherwise the HU genre list mixed "Drama" (no twin) with "Dráma".
+    episodes = item_type == _TYPE_EPISODE
     for group in by_guid.values():
         for row in group:
-            row.title_hu = row.summary_hu = row.genres_hu = None
+            row.title_hu = row.summary_hu = None
+            if not episodes:
+                row.tagline_hu = None
+                row.genres_hu = hu_genres(row.genres)
     seen: set[str] = (
         set()
     )  # first HU entry for a guid wins; a dup HU item can't overwrite or double-count
@@ -699,13 +742,15 @@ def _sync_overlay(
         seen.add(g)
         title_hu = (meta.get("title") or "").strip() or None
         summary_hu = meta.get("summary")
-        genres_hu = _tags(meta, "Genre")
+        tagline_hu = (meta.get("tagline") or "").strip() or None
+        genres_hu = hu_genres(_tags(meta, "Genre"))
         for row in targets:
             row.title_hu = title_hu
             row.summary_hu = summary_hu
-            row.genres_hu = genres_hu
+            if not episodes:
+                row.tagline_hu = tagline_hu
+                row.genres_hu = genres_hu or row.genres_hu
         stats["overlaid"] = stats.get("overlaid", 0) + 1
-    db.flush()
 
 
 def _upsert_collection(

backend/app/plex/tmdb.py

@@ -10,8 +10,10 @@ One-parser rule (mirrors app/plex/detail.py): `parse_tmdb` is the pure parser, `
 the row. The enrich batch + scheduler entry live here too so the whole TMDB integration is one module.
 """
 
+import re
 import time
 from datetime import datetime, timezone
+from typing import cast
 
 import httpx
 from sqlalchemy import func, select
@@ -21,6 +23,8 @@ from sqlalchemy.orm import Session
 from app import logs, sysconfig
 from app.config import settings
 from app.models import PlexItem, PlexPerson, PlexShow
+from app.plex.cards import display_title
+from app.plex.people import people_by_credits, warm_portraits
 
 log = logs.get_logger(__name__)
 # Politeness throttle: TMDB tolerates ~50 req/s; ~33/s leaves comfortable headroom for a shared host.
@@ -124,9 +128,17 @@ class TmdbClient:
         """Resolve an external id (imdb_id / tvdb_id) to TMDB items via /find."""
         return self._get(f"/find/{external_id}", {"external_source": source})
 
+    def countries(self) -> list[dict] | None:
+        """TMDB's country list: `[{iso_3166_1, english_name, native_name}]` (a JSON array, which
+        `_get`'s dict annotation does not describe)."""
+        return cast("list[dict] | None", self._get("/configuration/countries"))
+
     def fetch_person(self, person_id: int) -> dict | None:
-        """One person's bio + combined credits (E5 S6), in a single append_to_response request."""
-        return self._get(f"/person/{person_id}", {"append_to_response": "combined_credits"})
+        """One person's bio + combined credits (E5 S6) + the bio's translations (E30 S4), in a single
+        append_to_response request."""
+        return self._get(
+            f"/person/{person_id}", {"append_to_response": "combined_credits,translations"}
+        )
 
 
 def guid_to_tmdb_id(guid: str | None, media_type: str, tmdb: TmdbClient) -> int | None:
@@ -254,8 +266,12 @@ def parse_tmdb(payload: dict, media_type: str) -> dict:
             c.get("name") for c in (payload.get("production_companies") or []) if c.get("name")
         ][:8]
         or None,
+        # The ISO code beside TMDB's English name (E30): the client names the country in the reader's
+        # language from the code; the name is the fallback for a code it cannot name.
         "production_countries": [
-            c.get("name") for c in (payload.get("production_countries") or []) if c.get("name")
+            {"code": c.get("iso_3166_1") or None, "name": c["name"]}
+            for c in (payload.get("production_countries") or [])
+            if c.get("name")
         ]
         or None,
         "recommendations": recs or None,
@@ -301,8 +317,8 @@ def _link_people(db: Session, links: dict[str, int]) -> None:
 
 
 def enrich_batch(db: Session, tmdb: TmdbClient, limit: int) -> int:
-    """Enrich up to `limit` not-yet-TMDB-enriched titles (movies first, shows fill the remainder —
-    mirrors _enrich_people_batch). A transient TmdbError leaves the watermark NULL for retry; a
+    """Enrich up to `limit` not-yet-TMDB-enriched titles (movies first, shows fill the
+    remainder). A transient TmdbError leaves the watermark NULL for retry; a
     definitive no-match (unresolvable guid / TMDB 404) still stamps the watermark so it isn't re-fetched
     every run. One commit at the end. Returns the number processed (matched OR definitively unmatched)."""
     movies = (
@@ -356,13 +372,62 @@ def enrich_batch(db: Session, tmdb: TmdbClient, limit: int) -> int:
     return processed
 
 
+def _country(c: dict | str) -> dict:
+    """One stored production country as served: `{code, name}`. A row enriched before E30 stored the
+    bare English name; until `backfill_country_codes` reaches it, it serves with no code (the client
+    shows the name)."""
+    return c if isinstance(c, dict) else {"code": None, "name": c}
+
+
+def backfill_country_codes(db: Session, tmdb: TmdbClient) -> int:
+    """Give the countries stored before E30 (bare English names) their ISO codes, from TMDB's own
+    country list — the names came from that list, so they match it exactly. One request, and only
+    while such a row is left: re-fetching each title instead would take the enrichment batch days.
+    A name the list does not hold keeps no code. Returns the number of rows rewritten."""
+    stale = [
+        row
+        for model in (PlexItem, PlexShow)
+        for row in db.execute(
+            select(model).where(func.jsonb_typeof(model.production_countries[0]) == "string")
+        ).scalars()
+    ]
+    if not stale:
+        return 0
+    codes = {
+        c["english_name"]: c["iso_3166_1"]
+        for c in tmdb.countries() or []
+        if c.get("english_name") and c.get("iso_3166_1")
+    }
+    for row in stale:
+        row.production_countries = [
+            {"code": codes.get(c), "name": c} if isinstance(c, str) else c
+            for c in row.production_countries or []
+        ]
+    db.commit()
+    return len(stale)
+
+
 def run_enrich(db: Session) -> dict:
     """Scheduler entry point. No-op (never an error) when the TMDB key isn't configured."""
     if not sysconfig.get_str(db, "tmdb_api_key"):
         return {"enriched": 0, "skipped": "tmdb_api_key not set"}
     with TmdbClient(db) as tmdb:
+        coded = backfill_country_codes(db, tmdb)
         n = enrich_batch(db, tmdb, settings.tmdb_enrich_batch)
-    return {"enriched": n}
+    return {"enriched": n, **({"countries_coded": coded} if coded else {})}
+
+
+def run_people_enrich(db: Session) -> dict:
+    """Scheduler entry point of people_enrich (E30 S6): a batch of person bios (the most-credited
+    first) and a batch of portraits. Each half is a no-op — never an error — without its TMDB key /
+    without Plex."""
+    batch = settings.people_enrich_batch
+    if sysconfig.get_str(db, "tmdb_api_key"):
+        with TmdbClient(db) as tmdb:
+            bios = enrich_people_batch(db, tmdb, batch)
+    else:
+        bios = {"skipped": "tmdb_api_key not set"}
+    return {"bios": bios, "portraits": warm_portraits(db, batch)}
 
 
 def resolve_library_guids(
@@ -406,10 +471,11 @@ def resolve_library_guids(
     return movies, shows
 
 
-def resolve_recs(db: Session, recs: list[dict] | None) -> list[dict]:
+def resolve_recs(db: Session, recs: list[dict] | None, *, lang: str) -> list[dict]:
     """Tag each recommendation with whether it's in OUR library (matched by guid `tmdb:<id>`, bucketed
     by media_type — see resolve_library_guids) and, if so, its rating_key — so the client can deep-link
-    the ones we have and merely display the rest."""
+    the ones we have and merely display the rest. One we have is named as the library names it, in
+    `lang` (E30); one we lack keeps the title TMDB gave."""
     if not recs:
         return []
     movies, shows = resolve_library_guids(db, recs)
@@ -417,13 +483,19 @@ def resolve_recs(db: Session, recs: list[dict] | None) -> list[dict]:
     for r in recs:
         g = f"tmdb:{r.get('tmdb_id')}"
         row = shows.get(g) if r.get("media_type") == "tv" else movies.get(g)
+        named = {"title": display_title(row, lang)} if row is not None else {}
         out.append(
-            {**r, "in_library": row is not None, "rating_key": row.rating_key if row else None}
+            {
+                **r,
+                **named,
+                "in_library": row is not None,
+                "rating_key": row.rating_key if row else None,
+            }
         )
     return out
 
 
-def serve_block(db: Session, row) -> dict | None:
+def serve_block(db: Session, row, *, lang: str) -> dict | None:
     """The TMDB extras for a movie/show detail response, served from the row (no live TMDB call).
     None until the row has been TMDB-enriched (the client then shows nothing extra)."""
     if row.tmdb_enriched_at is None:
@@ -437,30 +509,58 @@ def serve_block(db: Session, row) -> dict | None:
         "keywords": row.keywords or [],
         "crew": row.crew or [],
         "studios": row.studios or [],
-        "production_countries": row.production_countries or [],
-        "recommendations": resolve_recs(db, row.recommendations),
+        "production_countries": [_country(c) for c in row.production_countries or []],
+        "recommendations": resolve_recs(db, row.recommendations, lang=lang),
         "backdrops": row.backdrops or [],
     }
 
 
 # --- Person enrichment (E5 S6) -------------------------------------------------------------------
-# A person's bio + birth facts + a "Known for" credit pool, fetched once (the first person-page open)
-# and served from the plex_people row. `known_for` stores the top combined-credits ids; the person
+# A person's bio + birth facts + a "Known for" credit pool, fetched once — by the people_enrich job, or
+# by the first person-page open if the job has not reached them yet — and served from the plex_people row. `known_for` stores the top combined-credits ids; the person
 # endpoint resolves them to library rows by guid at serve time (like recommendations).
 
-_KNOWN_FOR_MAX = 15
+# The candidate pool kept per person. Only the titles that are in the library are shown (at most
+# routes.plex.people._KNOWN_FOR_SHOWN), so the pool is deeper than the rail: a star's 15 most-voted
+# credits are often not the 15 a given library holds.
+_KNOWN_FOR_MAX = 40
+# TMDB genre ids of the shows a person visits as a guest (News, Reality, Talk). Ranked by popularity,
+# talk-show visits crowded out the films (Tom Cruise: 14 of 15 were talk shows; E30 S6).
+_GUEST_GENRES = {10763, 10764, 10767}
+# A credit in which the person plays themselves ("Self", "Himself - Guest", "Herself (archive footage)").
+_SELF_CREDIT = re.compile(r"^\s*(self|himself|herself|themselves)\b", re.IGNORECASE)
+# The crew jobs that make a title the person's own work (a director is known for what they directed).
+_KNOWN_FOR_CREW_JOBS = {"Director", "Creator"}
+
+
+def _known_for_credit(c: dict, crew: bool) -> bool:
+    if crew:
+        return c.get("job") in _KNOWN_FOR_CREW_JOBS
+    if _SELF_CREDIT.match(c.get("character") or ""):
+        return False
+    return not _GUEST_GENRES.intersection(c.get("genre_ids") or [])
 
 
 def parse_person(payload: dict) -> dict:
     """TMDB /person/{id} (+combined_credits) → the persisted bio fields. `known_for` = the person's
-    most-popular movie/tv credits (deduped by id), top `_KNOWN_FOR_MAX`, resolved to library later."""
-    credits = (payload.get("combined_credits") or {}).get("cast") or []
+    most-voted movie/tv credits — roles and directed works, not guest visits as themselves — deduped,
+    the top `_KNOWN_FOR_MAX`, resolved to library rows at serve time. Ranked by vote count, as TMDB's
+    own "Known for" is: popularity is this week's attention, which a talk-show visit wins."""
+    combined = payload.get("combined_credits") or {}
+    credits = [c for c in combined.get("cast") or [] if _known_for_credit(c, crew=False)] + [
+        c for c in combined.get("crew") or [] if _known_for_credit(c, crew=True)
+    ]
     # Dedup on (id, media_type), not the bare id: TMDB movie ids and tv ids are independent sequences
     # (id 603 can be both a movie and a show — see resolve_library_guids), so a same-id movie+show pair
     # is two distinct credits and both must survive.
     seen: set[tuple[int, str]] = set()
     known: list[dict] = []
-    for c in sorted(credits, key=lambda c: c.get("popularity") or 0, reverse=True):
+    ranked = sorted(
+        credits,
+        key=lambda c: (c.get("vote_count") or 0, c.get("popularity") or 0),
+        reverse=True,
+    )
+    for c in ranked:
         tid, mt = c.get("id"), c.get("media_type")
         if not tid or mt not in ("movie", "tv") or (tid, mt) in seen:
             continue
@@ -470,6 +570,7 @@ def parse_person(payload: dict) -> dict:
             break
     return {
         "biography": (payload.get("biography") or "").strip() or None,
+        "biography_hu": _translated_bio(payload, "hu"),
         "birthday": payload.get("birthday") or None,
         "deathday": payload.get("deathday") or None,
         "place_of_birth": payload.get("place_of_birth") or None,
@@ -479,8 +580,17 @@ def parse_person(payload: dict) -> dict:
     }
 
 
+def _translated_bio(payload: dict, lang: str) -> str | None:
+    """The `lang` biography from the appended `translations` (TMDB leaves an untranslated one blank)."""
+    for tr in (payload.get("translations") or {}).get("translations") or []:
+        if tr.get("iso_639_1") == lang:
+            return ((tr.get("data") or {}).get("biography") or "").strip() or None
+    return None
+
+
 def apply_person(row: PlexPerson, parsed: dict) -> None:
     row.biography = parsed["biography"]
+    row.biography_hu = parsed["biography_hu"]
     row.birthday = parsed["birthday"]
     row.deathday = parsed["deathday"]
     row.place_of_birth = parsed["place_of_birth"]
@@ -490,11 +600,22 @@ def apply_person(row: PlexPerson, parsed: dict) -> None:
     row.tmdb_enriched_at = datetime.now(timezone.utc)
 
 
+def _fetch_person_into(tmdb: TmdbClient, person: PlexPerson) -> None:
+    """Fetch one person from TMDB and write the row (not committed). A 404 (deleted person) stamps the
+    watermark with empty fields so it isn't fetched again. Raises TmdbError on a transient failure,
+    leaving the row untouched and `tmdb_enriched_at` NULL for a retry."""
+    payload = tmdb.fetch_person(cast(int, person.tmdb_person_id))
+    if payload is None:
+        person.tmdb_enriched_at = datetime.now(timezone.utc)
+    else:
+        apply_person(person, parse_person(payload))
+
+
 def enrich_person(db: Session, person: PlexPerson) -> bool:
-    """Lazily fetch + persist one person's TMDB bio (first person-page open), committing the write so it
-    survives regardless of the read path. No-op (False) without a key or a `tmdb_person_id`; a transient
-    error leaves `tmdb_enriched_at` NULL so the next open retries. A 404 (deleted person) stamps the
-    watermark with empty fields so we don't refetch it every open."""
+    """Lazily fetch + persist one person's TMDB bio (a person page opened before the background job
+    reached them), committing the write so it survives regardless of the read path. No-op (False)
+    without a key or a `tmdb_person_id`; a transient error leaves `tmdb_enriched_at` NULL so the next
+    open retries."""
     if not person.tmdb_person_id or not sysconfig.get_str(db, "tmdb_api_key"):
         return False
     try:
@@ -502,7 +623,7 @@ def enrich_person(db: Session, person: PlexPerson) -> bool:
         # longer blocks a serve; still cap the outbound TMDB call with a short timeout so a hanging TMDB
         # doesn't tie up a threadpool worker for the default 30s.
         with TmdbClient(db, timeout=8.0) as tmdb:
-            payload = tmdb.fetch_person(person.tmdb_person_id)
+            _fetch_person_into(tmdb, person)
     except TmdbError as exc:
         # False leaves the person un-enriched and unstamped, so it is retried — but the page in
         # front of the user right now shows an empty biography with nothing to say why.
@@ -515,9 +636,41 @@ def enrich_person(db: Session, person: PlexPerson) -> bool:
             ),
         )
         return False
-    if payload is None:
-        person.tmdb_enriched_at = datetime.now(timezone.utc)
-    else:
-        apply_person(person, parse_person(payload))
     db.commit()
     return True
+
+
+# Lookups failing this many people in a row end a people batch: TMDB itself is degraded, and hammering
+# it helps nobody. One person failing alone is skipped, so an id TMDB keeps refusing never stalls the rest.
+_PEOPLE_FAILS_IN_A_ROW = 3
+
+
+def enrich_people_batch(db: Session, tmdb: TmdbClient, limit: int) -> dict:
+    """Fetch up to `limit` linked, not-yet-enriched people (E30 S6), the most-credited first, so a
+    person page reads its bio from the row instead of waiting on TMDB. Each person is committed as it
+    lands: a page open during the run already sees it. A failed lookup is skipped (left unstamped for the
+    next run); _PEOPLE_FAILS_IN_A_ROW of them in a row end the batch."""
+    ids = people_by_credits(db, "bio", limit)
+    done = failed = in_a_row = 0
+    for pid in ids:
+        if in_a_row >= _PEOPLE_FAILS_IN_A_ROW:
+            break
+        person = db.get(PlexPerson, pid)
+        # A page open may have enriched this person since the select: skip, don't fetch twice.
+        if person is None or person.tmdb_enriched_at is not None:
+            continue
+        try:
+            _fetch_person_into(tmdb, person)
+        except TmdbError as exc:
+            db.rollback()
+            failed, in_a_row = failed + 1, in_a_row + 1
+            log.warning(
+                "a TMDB person lookup in the batch failed",
+                extra=logs.event(
+                    "plex.tmdb.people_batch_failed", person_id=pid, reason=type(exc).__name__
+                ),
+            )
+            continue
+        db.commit()
+        done, in_a_row = done + 1, 0
+    return {"enriched": done, **({"failed": failed} if failed else {})}

backend/app/routes/admin.py

@@ -834,7 +834,11 @@ def reset_demo(admin: User = Depends(admin_user), db: Session = Depends(get_db))
     demo = get_or_create_demo_user(db)
     seeded = reset_demo_state(db, demo)
     audit.record(
-        db, admin.id, AuditAction.DEMO_RESET, summary=f"{seeded} sample playlists re-seeded"
+        db,
+        admin.id,
+        AuditAction.DEMO_RESET,
+        summary=f"{seeded} sample playlists re-seeded",
+        after={"playlists_seeded": seeded},  # the count as data: named in the reader's language
     )
     db.commit()
     return {"ok": True, "reset": True, "playlists_seeded": seeded}

backend/app/routes/audit.py

@@ -66,6 +66,12 @@ def list_audit(
 def clear_audit(admin: User = Depends(admin_user), db: Session = Depends(get_db)) -> dict:
     """Clear the audit log. Leaves ONE row recording who cleared it + how many (tamper-evidence)."""
     n = db.execute(delete(AuditLog)).rowcount or 0
-    audit.record(db, admin.id, AuditAction.AUDIT_CLEAR, summary=f"Cleared {n} audit entries")
+    audit.record(
+        db,
+        admin.id,
+        AuditAction.AUDIT_CLEAR,
+        summary=f"Cleared {n} audit entries",
+        after={"cleared": n},  # the count as data: the log names it in the reader's language
+    )
     db.commit()
     return {"ok": True, "cleared": n}

backend/app/routes/channels.py

@@ -9,6 +9,8 @@ from pydantic import BaseModel
 from sqlalchemy import func, select, update
 from sqlalchemy.orm import Session
 
+from app.collation import collated, sorted_words
+from app.mailtext import lang_for_user
 from app import logs, quota
 from app.auth import admin_user, current_user, require_human, require_write_scope
 from app.db import get_db
@@ -44,7 +46,7 @@ def list_channels(user: User = Depends(current_user), db: Session = Depends(get_
         select(Subscription, Channel)
         .join(Channel, Channel.id == Subscription.channel_id)
         .where(Subscription.user_id == user.id)
-        .order_by(Subscription.priority.desc(), func.lower(Channel.title))
+        .order_by(Subscription.priority.desc(), collated(Channel.title, lang_for_user(user)))
     ).all()
 
     # Per-channel aggregates over the shared catalog in ONE grouped pass: stored count, last
@@ -139,7 +141,7 @@ def _discovery_rows(db: Session, user: User) -> list:
     return db.execute(
         q.group_by(Channel.id).order_by(
             func.count(func.distinct(PlaylistItem.video_id)).desc(),
-            func.lower(Channel.title),
+            collated(Channel.title, lang_for_user(user)),
         )
     ).all()
 
@@ -192,10 +194,14 @@ def discover_channels(
             ):
                 apply_channel_details(db, yt.get_channels(need), need)
             db.commit()
-            # Match _discovery_rows' ORDER BY exactly: video-count DESC, then title (NULLs LAST,
-            # as Postgres orders them — coercing NULL→"" would wrongly float untitled channels up).
+            # Match _discovery_rows' ORDER BY exactly: video-count DESC, then title in the reader's
+            # alphabet (NULLs LAST, as Postgres orders them — coercing NULL→"" would wrongly float
+            # untitled channels up).
+            titles = [r[0].title for r in rows if r[0].title is not None]
+            alpha = {w: i for i, w in enumerate(sorted_words(db, titles, lang_for_user(user)))}
             rows = sorted(
-                rows, key=lambda r: (-int(r[1]), r[0].title is None, (r[0].title or "").lower())
+                rows,
+                key=lambda r: (-int(r[1]), r[0].title is None, alpha.get(r[0].title or "", 0)),
             )
         except YouTubeError as exc:
             log.warning(
@@ -659,7 +665,7 @@ def list_blocked(user: User = Depends(current_user), db: Session = Depends(get_d
             select(Channel)
             .join(BlockedChannel, BlockedChannel.channel_id == Channel.id)
             .where(BlockedChannel.user_id == user.id)
-            .order_by(func.lower(Channel.title))
+            .order_by(collated(Channel.title, lang_for_user(user)))
         )
         .scalars()
         .all()

backend/app/routes/discover.py

@@ -23,6 +23,7 @@ from app.discover import hero as hero_mod
 from app.discover import pins, rails
 from app.discover.budget import Budget, DEFAULT_BUDGET
 from app.models import ComfortPin, User
+from app.plex.cards import norm_lang
 from app.routes._common import owned_or_404, not_found
 
 router = APIRouter(prefix="/api/discover", tags=["discover"])
@@ -45,6 +46,7 @@ class ReorderIn(BaseModel):
 def get_discover(
     budget: Budget = DEFAULT_BUDGET,
     seed: int = 0,
+    lang: str = "en",
     user: User = Depends(current_user),
     db: Session = Depends(get_db),
 ) -> dict:
@@ -52,13 +54,14 @@ def get_discover(
 
     `resume` and `shelf` are built once and handed to the hero, so the two rails the hero draws from
     are not queried twice for a single page load."""
-    resume = rails.continue_watching(db, user)
+    lang = norm_lang(lang)
+    resume = rails.continue_watching(db, user, lang=lang)
     # Plex off → the shelf rail (and so the hero's comfort tier) goes YouTube-only like the rails
     # beside it; the pins are kept and `GET /pins` still lists them (`pins.shelf`).
-    shelf = pins.shelf(db, user, include_plex=rails.plex_available(db))
+    shelf = pins.shelf(db, user, include_plex=rails.plex_available(db), lang=lang)
     return {
         "budget": budget,
-        "hero": hero_mod.pick(db, user, budget, seed, resume=resume, shelf=shelf),
+        "hero": hero_mod.pick(db, user, budget, seed, resume=resume, shelf=shelf, lang=lang),
         "continue_watching": resume,
         "comfort": shelf,
     }
@@ -80,6 +83,7 @@ def get_pick(
     seed: int = 0,
     exclude: str = "",
     start: int = 0,
+    lang: str = "en",
     user: User = Depends(current_user),
     db: Session = Depends(get_db),
 ) -> dict:
@@ -99,18 +103,25 @@ def get_pick(
     return {
         "budget": budget,
         "hero": hero_mod.pick(
-            db, user, budget, seed, exclude=set(list(skip)[:MAX_EXCLUDE]), start=start
+            db,
+            user,
+            budget,
+            seed,
+            exclude=set(list(skip)[:MAX_EXCLUDE]),
+            start=start,
+            lang=norm_lang(lang),
         ),
     }
 
 
 @router.get("/pins")
 def list_pins(
+    lang: str = "en",
     user: User = Depends(current_user),
     db: Session = Depends(get_db),
 ) -> dict:
     """The shelf on its own — for the shelf editor, which needs it without the rest of the page."""
-    return {"items": pins.shelf(db, user)}
+    return {"items": pins.shelf(db, user, lang=norm_lang(lang))}
 
 
 @router.post("/pins")

backend/app/routes/downloads.py

@@ -21,6 +21,8 @@ from pydantic import BaseModel
 from sqlalchemy import func, select
 from sqlalchemy.orm import Session
 
+from app.mailtext import lang_for_user
+from app.collation import collated
 from app import audit, sysconfig
 from app.auth import admin_user, require_human
 from app.config import settings
@@ -917,7 +919,14 @@ def share_download(
             user_id=recipient.id,
             type="download_shared",
             title=(job.display_name or "A download") + " was shared with you",
-            data={"kind": "download_shared", "from": user.email, "job_id": job_id},
+            # The client names the notice in the reader's language from `data` (E30); the title is the
+            # English fallback only.
+            data={
+                "kind": "download_shared",
+                "from": user.email,
+                "job_id": job_id,
+                "title": job.display_name,
+            },
             commit=False,
         )
         db.commit()
@@ -981,7 +990,7 @@ def share_recipients(
         db.execute(
             select(User)
             .where(User.id != user.id, *messageable_clauses())
-            .order_by(func.lower(User.email))
+            .order_by(collated(User.email, lang_for_user(user)))
         )
         .scalars()
         .all()

backend/app/routes/feed.py

@@ -10,6 +10,7 @@ from sqlalchemy.orm.exc import StaleDataError
 from app import quota
 from app.auth import current_user
 from app.db import get_db
+from app.mailtext import lang_for_user
 from app.feedquery import (
     decode_cursor,
     encode_cursor,
@@ -108,7 +109,7 @@ def get_feed(
     db: Session = Depends(get_db),
 ) -> dict:
     query, rank_expr = filtered_query(db, user, **params)
-    keys = sort_keys(sort, seed, rank_expr)
+    keys = sort_keys(sort, seed, rank_expr, lang_for_user(user))
 
     # Expose each key column on the row so we can build the next cursor from the last item.
     query = query.add_columns(*[k["expr"].label(f"_k{i}") for i, k in enumerate(keys)])

backend/app/routes/messages.py

@@ -21,6 +21,8 @@ from pydantic import BaseModel
 from sqlalchemy import and_, case, delete, func, or_, select
 from sqlalchemy.orm import Session
 
+from app.mailtext import lang_for_user
+from app.collation import collated
 from app.auth import require_human, resolved_user_id
 from app.db import SessionLocal, get_db
 from app.models import Message, MessageKey, User
@@ -246,7 +248,7 @@ def list_recipients(
             select(User)
             .join(MessageKey, MessageKey.user_id == User.id)
             .where(User.id != user.id, *messageable_clauses())
-            .order_by(func.lower(func.coalesce(User.display_name, User.email)))
+            .order_by(collated(func.coalesce(User.display_name, User.email), lang_for_user(user)))
         )
         .scalars()
         .all()

backend/app/routes/plex/_shared.py

@@ -4,6 +4,7 @@ from sqlalchemy.orm import Session
 
 from app import logs
 from app.models import PlexItem
+from app.plex.cards import norm_lang as _norm_lang  # noqa: F401 — the package's historic name
 from app.plex.lookups import by_rating_key
 from app.routes._common import not_found
 
@@ -15,8 +16,3 @@ def item_or_404(db: Session, rating_key: str) -> PlexItem:
     if it is None:
         raise not_found("plex_item")
     return it
-
-
-def _norm_lang(lang: str | None) -> str:
-    """The overlay has an EN base + an optional HU twin; anything other than `hu` serves EN."""
-    return "hu" if lang == "hu" else "en"

backend/app/routes/plex/browse.py

@@ -10,10 +10,13 @@ from sqlalchemy import (
     func,
     literal,
     null,
+    or_,
     select,
 )
 from sqlalchemy.orm import Session, aliased
 
+from app.mailtext import lang_for_user
+from app.collation import collated, sorted_words
 from app import sysconfig
 from app.auth import current_user
 from app.db import get_db
@@ -25,7 +28,7 @@ from app.models import (
     User,
 )
 from app.plex import rollup
-from app.plex.cards import episode_card
+from app.plex.cards import display_title, episode_card
 from app.plex.query import (
     FIELD_COLUMNS,
     PLAYBACK_CLASSES,
@@ -54,14 +57,15 @@ from app.utils import to_tsquery_str
 router = APIRouter(prefix="/api/plex", tags=["plex"])
 
 
-def sort_column(u, sort: str):
+def sort_column(u, sort: str, lang: str = "en"):
     """The browse grid's sort key -> orderable column on the union subquery. Module-level (not inline
     in the handler) so a test can pin its vocabulary to `PLEX_SORT_KEYS` — a key the Sort control
     offers but this cannot order would quietly fall back to `added_at` and look like a broken control.
-    An unknown key (a stale bookmark, a hand-edited URL) deliberately keeps that fallback."""
+    An unknown key (a stale bookmark, a hand-edited URL) deliberately keeps that fallback. The title sorts
+    in the reader's alphabet (`collation`)."""
     return {
         "added": u.c.added_at,
-        "title": func.lower(u.c.title),
+        "title": collated(u.c.title, lang),
         "year": u.c.year,
         "rating": u.c.rating,
         "duration": u.c.duration_s,
@@ -78,7 +82,7 @@ def list_libraries(user: User = Depends(current_user), db: Session = Depends(get
         db.execute(
             select(PlexLibrary)
             .where(PlexLibrary.overlay_of.is_(None))
-            .order_by(PlexLibrary.kind.desc(), PlexLibrary.title)
+            .order_by(PlexLibrary.kind.desc(), collated(PlexLibrary.title, lang_for_user(user)))
         )
         .scalars()
         .all()
@@ -237,7 +241,7 @@ def unified_library(
         if tsq is not None:
             order = [u.c.rank.desc()]
         else:
-            col = sort_column(u, sort)
+            col = sort_column(u, sort, lang)
             order = [(col.asc() if sort_dir == "asc" else col.desc()).nullslast()]
         order.append(u.c.rk.desc())
         rows = db.execute(select(u).order_by(*order).offset(offset).limit(limit)).all()
@@ -281,26 +285,32 @@ def unified_library(
     episodes = []
     if tsq is not None and want_shows and field in ("all", "episode"):
         ep_st = aliased(PlexState)
-        ep_vec = (
-            func.to_tsvector(TS_CONFIG, func.coalesce(PlexItem.title, ""))
-            if field == "episode"
-            else PlexItem.search_vector
-        )
+        # In HU an episode is found by its Hungarian title too (E30: the overlay now fills it) — and
+        # still by its English one, like `vector_match` does for the grid.
+        if field == "episode":
+            ep_vec = func.to_tsvector(TS_CONFIG, func.coalesce(PlexItem.title, ""))
+            ep_vec_hu = func.to_tsvector(TS_CONFIG, func.coalesce(PlexItem.title_hu, ""))
+        else:
+            ep_vec, ep_vec_hu = PlexItem.search_vector, PlexItem.search_vector_hu
+        hit = ep_vec.op("@@")(tsq)
+        if lang == "hu":
+            hit = or_(ep_vec_hu.op("@@")(tsq), hit)
+            ep_vec = ep_vec_hu
         eps = db.execute(
-            select(PlexItem, ep_st, PlexShow.title.label("show_title"))
+            select(PlexItem, ep_st, PlexShow)
             .outerjoin(ep_st, and_(ep_st.item_id == PlexItem.id, ep_st.user_id == user.id))
             .outerjoin(PlexShow, PlexShow.id == PlexItem.show_id)
             .where(
                 PlexItem.kind == "episode",
                 PlexItem.library_id.in_(show_lib_ids),
-                ep_vec.op("@@")(tsq),
+                hit,
             )
             .order_by(func.ts_rank(ep_vec, tsq).desc())
             .limit(24)
         ).all()
-        for e, s, show_title in eps:
-            card = episode_card(e, s)
-            card["show_title"] = show_title
+        for e, s, sh in eps:
+            card = episode_card(e, s, lang=lang)
+            card["show_title"] = display_title(sh, lang) if sh is not None else None
             episodes.append(card)
 
     return {
@@ -523,16 +533,19 @@ def facets(
     for c in split_csv(f.playable):
         if c in PLAYBACK_CLASSES:
             playable_counts.setdefault(c, 0)
+    # Names in the reader's alphabet: the genres are Hungarian words for a Hungarian reader (E30 S1).
+    alpha = {w: i for i, w in enumerate(sorted_words(db, [*genre_counts, *studio_counts], lang))}
     return {
         "genres": [
-            {"value": g, "count": c} for g, c in sorted(genre_counts.items(), key=lambda kv: kv[0])
+            {"value": g, "count": c}
+            for g, c in sorted(genre_counts.items(), key=lambda kv: alpha[kv[0]])
         ],
         "content_ratings": [
             {"value": cr, "count": c} for cr, c in sorted(cr_counts.items(), key=lambda kv: -kv[1])
         ],
         "studios": [
             {"value": s, "count": c}
-            for s, c in sorted(studio_counts.items(), key=lambda kv: (-kv[1], kv[0]))
+            for s, c in sorted(studio_counts.items(), key=lambda kv: (-kv[1], alpha[kv[0]]))
         ],
         # Fixed good→heavy order (not by count), so the class list reads as a severity scale.
         "playable": [

backend/app/routes/plex/collections.py

@@ -9,6 +9,8 @@ from pydantic import BaseModel
 from sqlalchemy import func, select
 from sqlalchemy.orm import Session
 
+from app.mailtext import lang_for_user
+from app.collation import collated, sorted_words
 from app import logs
 from app.auth import admin_user, current_user
 from app.db import get_db
@@ -22,10 +24,10 @@ from app.models import (
 )
 from app.plex import rollup
 from app.plex import sync as plex_sync
-from app.plex.cards import movie_card, show_card
+from app.plex.cards import display_title, movie_card, norm_lang, show_card
 from app.plex.client import PlexClient, PlexError, PlexNotConfigured
 from app.plex.lookups import by_rating_key
-from app.plex.query import content_libs, runtime_by_key, top_art_keys
+from app.plex.query import content_libs, runtime_by_key, title_col, top_art_keys
 from app.utils import like_escape
 from app.refusal import refused
 from app.routes._common import not_found
@@ -142,7 +144,7 @@ def collections(
         db.execute(
             query.order_by(
                 PlexCollection.child_count.desc().nullslast(),
-                func.lower(PlexCollection.title),
+                collated(PlexCollection.title, lang_for_user(user)),
             )
         )
         .scalars()
@@ -208,16 +210,24 @@ MEMBER_SORT_KEYS: dict[str, Callable[[Member], Any]] = {
 DEFAULT_MEMBER_SORT = "year"
 
 
-def sort_members(members: list[Member], sort: str, sort_dir: str) -> list[Member]:
+def sort_members(
+    members: list[Member], sort: str, sort_dir: str, alpha: dict[str, int] | None = None
+) -> list[Member]:
     """Order a collection's members by one of `PLEX_SORT_KEYS`.
 
     Two properties worth stating because they are easy to get wrong with a plain `reverse=True`:
     members with no value for the key sink to the END in BOTH directions (matching the browse grid's
     `nullslast()` — a movie with no rating is not "the worst rated"), and ties always resolve
     title-ascending, so flipping the direction reverses the ranking rather than the alphabet inside
-    it. An unknown key falls back to the page's default instead of returning an arbitrary order."""
+    it. An unknown key falls back to the page's default instead of returning an arbitrary order.
+
+    `alpha` ranks each title in the reader's alphabet (`collation.sorted_words`); without it, titles
+    compare as Python strings, which puts every accented initial after "z"."""
+    by_title = (lambda m: alpha[m.title]) if alpha is not None else (lambda m: m.title)
     key = MEMBER_SORT_KEYS.get(sort, MEMBER_SORT_KEYS[DEFAULT_MEMBER_SORT])
-    ordered = sorted(members, key=lambda m: m.title)  # stable secondary, applied first
+    if key is MEMBER_SORT_KEYS["title"]:
+        key = by_title
+    ordered = sorted(members, key=by_title)  # stable secondary, applied first
     have = [m for m in ordered if key(m) is not None]
     missing = [m for m in ordered if key(m) is None]
     have.sort(key=key, reverse=sort_dir != "asc")
@@ -229,6 +239,7 @@ def collection_detail(
     rating_key: str,
     sort: str = DEFAULT_MEMBER_SORT,
     sort_dir: str = "asc",
+    lang: str = "en",
     user: User = Depends(current_user),
     db: Session = Depends(get_db),
 ) -> dict:
@@ -237,6 +248,7 @@ def collection_detail(
     control means the same thing on both surfaces; the default is release year ascending, which is
     what this page did before it had a control. Read-only here; edits go through the admin mutation
     endpoints below."""
+    lang = norm_lang(lang)
     col = by_rating_key(db, PlexCollection, rating_key)
     if col is None:
         raise not_found("collection")
@@ -244,7 +256,7 @@ def collection_detail(
         db.execute(
             select(PlexItem)
             .where(PlexItem.kind == "movie", PlexItem.collection_keys.contains([rating_key]))
-            .order_by(PlexItem.year.asc().nullslast(), func.lower(PlexItem.title))
+            .order_by(PlexItem.year.asc().nullslast(), collated(title_col(PlexItem, lang), lang))
         )
         .scalars()
         .all()
@@ -253,7 +265,7 @@ def collection_detail(
         db.execute(
             select(PlexShow)
             .where(PlexShow.collection_keys.contains([rating_key]))
-            .order_by(PlexShow.year.asc().nullslast(), func.lower(PlexShow.title))
+            .order_by(PlexShow.year.asc().nullslast(), collated(title_col(PlexShow, lang), lang))
         )
         .scalars()
         .all()
@@ -285,7 +297,7 @@ def collection_detail(
         Member(
             kind="movie",
             obj=m,
-            title=(m.title or "").lower(),
+            title=display_title(m, lang).lower(),
             year=m.year,
             rating=m.rating,
             added=m.added_at,
@@ -298,7 +310,7 @@ def collection_detail(
         Member(
             kind="show",
             obj=sh,
-            title=(sh.title or "").lower(),
+            title=display_title(sh, lang).lower(),
             year=sh.year,
             rating=sh.rating,
             added=sh.added_at,
@@ -308,11 +320,12 @@ def collection_detail(
         )
         for sh in shows
     ]
-    members = sort_members(members, sort, sort_dir)
+    alpha = {w: i for i, w in enumerate(sorted_words(db, [m.title for m in members], lang))}
+    members = sort_members(members, sort, sort_dir, alpha)
     items = [
-        movie_card(m.obj, mstate.get(m.obj.id))
+        movie_card(m.obj, mstate.get(m.obj.id), lang=lang)
         if m.kind == "movie"
-        else show_card(m.obj, sstate.get(m.obj.id, "new"))
+        else show_card(m.obj, sstate.get(m.obj.id, "new"), lang=lang)
         for m in members
     ]
     years = [m.year for m in members if m.year is not None]

backend/app/routes/plex/detail.py

@@ -1,14 +1,16 @@
 """Plex show/item detail: the show drill-down + the per-item player payload (markers, cast, nav)."""
 
+import re
 import threading
 import time
 from concurrent.futures import ThreadPoolExecutor
 from datetime import datetime, timezone
 
 from fastapi import APIRouter, Depends
-from sqlalchemy import func, select
+from sqlalchemy import select
 from sqlalchemy.orm import Session
 
+from app.collation import collated, sorted_words
 from app import logs
 from app.auth import current_user
 from app.db import get_db
@@ -24,6 +26,7 @@ from app.models import (
 from app.plex import detail as plex_detail
 from app.plex import people as plex_people
 from app.plex import rollup, subtitles
+from app.plex.query import title_col
 from app.plex import tmdb as plex_tmdb
 from app.plex.cards import episode_card, movie_card, show_card
 from app.plex.client import PlexClient, PlexError, PlexNotConfigured
@@ -107,7 +110,8 @@ def show_detail(
     db: Session = Depends(get_db),
 ) -> dict:
     """A show's seasons + episodes (the drill-down view) with per-user watch state."""
-    hu = _norm_lang(lang) == "hu"
+    lang = _norm_lang(lang)
+    hu = lang == "hu"
     sh = by_rating_key(db, PlexShow, rating_key)
     if sh is None:
         raise not_found("show")
@@ -144,7 +148,7 @@ def show_detail(
     by_season: dict[int | None, list] = {}
     all_cards: list[dict] = []  # every episode, in season/episode order → show-level rollup
     for e in eps:
-        card = episode_card(e, states.get(e.id))
+        card = episode_card(e, states.get(e.id), lang=lang)
         by_season.setdefault(e.season_id, []).append(card)
         all_cards.append(card)
     show_roll = rollup.rollup(all_cards)
@@ -156,7 +160,7 @@ def show_detail(
     related: list[dict] = []
     try:
         meta, related_raw = _show_enrichment(db, sh.rating_key)
-        related = _relatedshow_cards(db, user.id, related_raw, exclude=sh.id)
+        related = _relatedshow_cards(db, user.id, related_raw, exclude=sh.id, lang=lang)
         if sh.people_enriched_at is None and meta:
             plex_people.enrich_row_people(db, sh, plex_people.cast_from_meta(meta))
             plex_detail.apply_rich_detail(sh, meta)  # imdb/tagline/full_cast for future views
@@ -210,7 +214,7 @@ def show_detail(
             "episode_count": show_roll["episode_count"],
             "collection_keys": sh.collection_keys or [],
             # TMDB enrichment (E5 S2), served from the row.
-            "tmdb": plex_tmdb.serve_block(db, sh),
+            "tmdb": plex_tmdb.serve_block(db, sh, lang=lang),
         },
         "seasons": [_season_block(se, by_season.get(se.id, [])) for se in seasons],
         "related": related,
@@ -234,7 +238,9 @@ def _season_block(se: PlexSeason, cards: list[dict]) -> dict:
     }
 
 
-def _relatedshow_cards(db: Session, user_id: int, related: list[dict], exclude: int) -> list[dict]:
+def _relatedshow_cards(
+    db: Session, user_id: int, related: list[dict], exclude: int, lang: str
+) -> list[dict]:
     """Map Plex 'related' metadata to show cards for the shows we actually mirror (so they're openable),
     excluding the current show. Order preserved; capped."""
     rks = [str(m.get("ratingKey")) for m in related if m.get("ratingKey")]
@@ -254,13 +260,13 @@ def _relatedshow_cards(db: Session, user_id: int, related: list[dict], exclude:
         if sh is None or rk in seen:
             continue
         seen.add(rk)
-        out.append(show_card(sh, statuses.get(sh.id, "new")))
+        out.append(show_card(sh, statuses.get(sh.id, "new"), lang=lang))
         if len(out) >= 20:
             break
     return out
 
 
-def _collection_strips(db: Session, it: PlexItem, user_id: int) -> list[dict]:
+def _collection_strips(db: Session, it: PlexItem, user_id: int, lang: str) -> list[dict]:
     """The collections this movie belongs to, each with its member titles (playable cards) — the
     'Avatar Collection' strip on the info page. Pure local lookup (no Plex call)."""
     keys = it.collection_keys or []
@@ -273,7 +279,8 @@ def _collection_strips(db: Session, it: PlexItem, user_id: int) -> list[dict]:
         ).scalars()
     }
     # Smallest (most specific — e.g. a franchise) first; the big auto-lists (IMDb/TMDb Popular) last.
-    ordered = sorted((c for c in cols.values()), key=lambda c: (c.child_count or 0, c.title))
+    alpha = {w: i for i, w in enumerate(sorted_words(db, [c.title for c in cols.values()], lang))}
+    ordered = sorted(cols.values(), key=lambda c: (c.child_count or 0, alpha[c.title]))
     out = []
     for col in ordered:
         rk = col.rating_key
@@ -285,7 +292,9 @@ def _collection_strips(db: Session, it: PlexItem, user_id: int) -> list[dict]:
                     PlexItem.kind == "movie",
                     PlexItem.collection_keys.contains([rk]),
                 )
-                .order_by(PlexItem.year.asc().nullslast(), func.lower(PlexItem.title))
+                .order_by(
+                    PlexItem.year.asc().nullslast(), collated(title_col(PlexItem, lang), lang)
+                )
                 .limit(60)
             )
             .scalars()
@@ -305,7 +314,7 @@ def _collection_strips(db: Session, it: PlexItem, user_id: int) -> list[dict]:
                 "id": rk,
                 "title": col.title,
                 "source": _collection_source(col),
-                "items": [movie_card(m, states.get(m.id)) for m in members],
+                "items": [movie_card(m, states.get(m.id), lang=lang) for m in members],
             }
         )
     return out
@@ -339,6 +348,26 @@ def _episode_nav(db: Session, it: PlexItem) -> tuple[str | None, str | None]:
     return (keys[i - 1] if i > 0 else None), (keys[i + 1] if i < len(keys) - 1 else None)
 
 
+# The technical tail of Plex's track title — "English (AC3 5.1)" → "AC3 5.1".
+_TRACK_TAIL = re.compile(r"\(([^()]+)\)\s*$")
+
+
+def _track_naming(s: dict) -> dict:
+    """What the player names a track from (E30). Plex's `displayTitle` is in the SERVER's language
+    ("English (AC3 5.1)", "magyar Forced", "中文 (EAC3 Stereo)"), so it is sent only as the fallback
+    `label`; the client builds the name in the reader's language from the language tag, the
+    forced / SDH flags and the codec tail. No title and no language → no label (the client numbers it)."""
+    title = s.get("displayTitle") or s.get("language") or None
+    tail = _TRACK_TAIL.search(title) if title else None
+    return {
+        "label": title,
+        "lang_tag": s.get("languageTag") or None,
+        "forced": bool(s.get("forced")),
+        "hearing_impaired": bool(s.get("hearingImpaired")),
+        "detail": tail.group(1).strip() if tail else None,
+    }
+
+
 @router.get("/item/{rating_key}")
 def item_detail(
     rating_key: str,
@@ -384,9 +413,7 @@ def item_detail(
                 audio_streams.append(
                     {
                         "ord": len(audio_streams),
-                        "label": s.get("displayTitle")
-                        or s.get("language")
-                        or f"Audio {len(audio_streams) + 1}",
+                        **_track_naming(s),
                         "language": s.get("languageTag") or s.get("language"),
                         "default": bool(s.get("selected") or s.get("default")),
                     }
@@ -396,9 +423,7 @@ def item_detail(
                 subtitle_streams.append(
                     {
                         "ord": len(subtitle_streams),
-                        "label": s.get("displayTitle")
-                        or s.get("language")
-                        or f"Subtitle {len(subtitle_streams) + 1}",
+                        **_track_naming(s),
                         "language": s.get("languageTag") or s.get("language"),
                         "codec": codec,
                         # Text subs (srt/ass/…) can be served as WebVTT tracks; image subs (PGS/VobSub)
@@ -468,7 +493,7 @@ def item_detail(
             "genres": (it.genres_hu or it.genres if hu else it.genres) or [],
             "directors": it.directors or [],
             "studio": it.studio,
-            "tagline": it.tagline,
+            "tagline": (it.tagline_hu or it.tagline) if hu else it.tagline,
         }
     else:
         rich = plex_detail.rich_detail(meta)
@@ -512,7 +537,7 @@ def item_detail(
         "episode_number": it.episode_number,
         "prev_id": prev_id,
         "next_id": next_id,
-        "collections": _collection_strips(db, it, user.id),
+        "collections": _collection_strips(db, it, user.id, lang),
         # TMDB enrichment (E5 S2), served from the row — movies only (episodes aren't enriched).
-        "tmdb": plex_tmdb.serve_block(db, it) if it.kind == "movie" else None,
+        "tmdb": plex_tmdb.serve_block(db, it, lang=lang) if it.kind == "movie" else None,
     }

backend/app/routes/plex/discover.py

@@ -18,11 +18,12 @@ from fastapi import APIRouter, Depends, Query
 from sqlalchemy import and_, func, or_, select
 from sqlalchemy.orm import Session
 
+from app.collation import sorted_words
 from app.auth import current_user
 from app.db import get_db
 from app.models import PlexItem, PlexShow, PlexState, User
 from app.plex import rollup
-from app.plex.cards import leaf_card, movie_card, show_card
+from app.plex.cards import display_title, leaf_card, movie_card, show_card
 from app.plex.query import (
     LibraryFilters,
     apply_meta_filters,
@@ -61,14 +62,14 @@ def _movie_meta(q, p: dict, lang: str, f: LibraryFilters):
     return q
 
 
-def _movie_cards(db: Session, uid: int, items: list[PlexItem]) -> list[dict]:
+def _movie_cards(db: Session, uid: int, items: list[PlexItem], lang: str) -> list[dict]:
     sts = rollup.item_state_map(db, uid, [it.id for it in items])
-    return [movie_card(it, sts.get(it.id)) for it in items]
+    return [movie_card(it, sts.get(it.id), lang=lang) for it in items]
 
 
-def _show_cards(db: Session, uid: int, shows: list[PlexShow]) -> list[dict]:
+def _show_cards(db: Session, uid: int, shows: list[PlexShow], lang: str) -> list[dict]:
     statuses = rollup.state_map(db, uid, [s.id for s in shows])
-    return [show_card(s, statuses.get(s.id, "new")) for s in shows]
+    return [show_card(s, statuses.get(s.id, "new"), lang=lang) for s in shows]
 
 
 def _recently_added(
@@ -123,8 +124,8 @@ def _recently_added(
     # share one), so the merge doesn't depend on object identity staying alive.
     top_movies = [o for _, kind, o in top if kind == "movie"]
     top_shows = [o for _, kind, o in top if kind == "show"]
-    mcards = {m.rating_key: c for m, c in zip(top_movies, _movie_cards(db, uid, top_movies))}
-    scards = {s.rating_key: c for s, c in zip(top_shows, _show_cards(db, uid, top_shows))}
+    mcards = {m.rating_key: c for m, c in zip(top_movies, _movie_cards(db, uid, top_movies, lang))}
+    scards = {s.rating_key: c for s, c in zip(top_shows, _show_cards(db, uid, top_shows, lang))}
     return [mcards[o.rating_key] if kind == "movie" else scards[o.rating_key] for _, kind, o in top]
 
 
@@ -156,10 +157,10 @@ def _recently_watched(
             .order_by(PlexState.watched_at.desc().nullslast())
             .limit(RAIL_LIMIT)
         ).all():
-            rows.append((st.watched_at, leaf_card(it, st)))
+            rows.append((st.watched_at, leaf_card(it, st, lang=lang)))
     if show_ids:
         eq = (
-            select(PlexItem, PlexState, PlexShow.title, PlexShow.rating_key)
+            select(PlexItem, PlexState, PlexShow)
             .join(PlexState, and_(PlexState.item_id == PlexItem.id, PlexState.user_id == uid))
             .join(PlexShow, PlexShow.id == PlexItem.show_id)
             .where(
@@ -170,8 +171,11 @@ def _recently_watched(
             .order_by(PlexState.watched_at.desc().nullslast())
             .limit(RAIL_LIMIT)
         )
-        for ep, st, sh_title, sh_rk in db.execute(eq).all():
-            rows.append((st.watched_at, leaf_card(ep, st, show_title=sh_title, show_rk=sh_rk)))
+        for ep, st, sh in db.execute(eq).all():
+            card = leaf_card(
+                ep, st, show_title=display_title(sh, lang), show_rk=sh.rating_key, lang=lang
+            )
+            rows.append((st.watched_at, card))
     rows.sort(key=lambda r: r[0] or rollup.NO_TS, reverse=True)
     return [card for _, card in rows[:RAIL_LIMIT]]
 
@@ -214,7 +218,7 @@ def _continue_watching(
             .limit(RAIL_LIMIT)
         ).all()
         for it, st in mrows:
-            rows.append((st.progress_updated_at, movie_card(it, st)))
+            rows.append((st.progress_updated_at, movie_card(it, st, lang=lang)))
 
     if show_ids:
         # Reuse the shared per-show episode rollup (total/watched/inprog) rather than re-inlining it, plus
@@ -234,7 +238,7 @@ def _continue_watching(
             .limit(RAIL_LIMIT)
         ).all()
         for sh, resumed_at in srows:
-            rows.append((resumed_at, show_card(sh, "in_progress")))
+            rows.append((resumed_at, show_card(sh, "in_progress", lang=lang)))
 
     rows.sort(key=lambda r: r[0] or rollup.NO_TS, reverse=True)
     return [card for _, card in rows[:RAIL_LIMIT]]
@@ -261,7 +265,8 @@ def _genre_tiles(
         expanded = base.subquery()
         for g, c in db.execute(select(expanded.c.g, func.count()).group_by(expanded.c.g)).all():
             counts[g] = counts.get(g, 0) + c
-    top = sorted(counts.items(), key=lambda kv: (-kv[1], kv[0]))[:GENRE_TILES]
+    alpha = {w: i for i, w in enumerate(sorted_words(db, list(counts), lang))}
+    top = sorted(counts.items(), key=lambda kv: (-kv[1], alpha[kv[0]]))[:GENRE_TILES]
     # A 2×2 poster collage per tile: the top movies in that genre (color hash is the client fallback).
     art = top_art_keys(
         db,
@@ -310,7 +315,7 @@ def _because_you_watched(
     )
     if anchor is None:
         return None
-    resolved = resolve_recs(db, anchor.recommendations)
+    resolved = resolve_recs(db, anchor.recommendations, lang=lang)
     # Preserve TMDB's recommendation order, keep only in-library hits, and drop the anchor itself.
     rks = [
         r["rating_key"]
@@ -346,9 +351,11 @@ def _because_you_watched(
     ordered_shows = [shows[rk] for rk in rks if rk in shows]
     # rating_key is globally unique in Plex, so it keys the serialized cards back safely (no id()).
     mcards = {
-        m.rating_key: c for m, c in zip(ordered_movies, _movie_cards(db, uid, ordered_movies))
+        m.rating_key: c for m, c in zip(ordered_movies, _movie_cards(db, uid, ordered_movies, lang))
+    }
+    scards = {
+        s.rating_key: c for s, c in zip(ordered_shows, _show_cards(db, uid, ordered_shows, lang))
     }
-    scards = {s.rating_key: c for s, c in zip(ordered_shows, _show_cards(db, uid, ordered_shows))}
     items: list[dict] = []
     for rk in rks:
         if rk in mcards:
@@ -357,7 +364,10 @@ def _because_you_watched(
             items.append(scards[rk])
     if not items:
         return None
-    return {"anchor": {"id": anchor.rating_key, "title": anchor.title}, "items": items}
+    return {
+        "anchor": {"id": anchor.rating_key, "title": display_title(anchor, lang)},
+        "items": items,
+    }
 
 
 @router.get("/discover")
@@ -456,8 +466,8 @@ def surprise(
             .scalars()
             .all()
         )
-    mcards = _movie_cards(db, user.id, movies)
-    scards = _show_cards(db, user.id, shows)
+    mcards = _movie_cards(db, user.id, movies, lang)
+    scards = _show_cards(db, user.id, shows, lang)
     # Interleave movie/show cards, then trim to `limit`.
     items: list[dict] = []
     for i in range(max(len(mcards), len(scards))):

backend/app/routes/plex/people.py

@@ -7,7 +7,8 @@ from fastapi import APIRouter, BackgroundTasks, Depends
 from sqlalchemy import func, or_, select
 from sqlalchemy.orm import Session
 
-from app import logs
+from app.collation import collated
+from app import logs, sysconfig
 from app.auth import current_user
 from app.db import SessionLocal, get_db
 from app.models import (
@@ -18,22 +19,28 @@ from app.models import (
 )
 from app.plex import rollup
 from app.plex import tmdb as plex_tmdb
-from app.plex.cards import movie_card, show_card
-from app.plex.query import content_libs, split_csv
+from app.plex.cards import movie_card, norm_lang, show_card
+from app.plex.query import content_libs, split_csv, title_col
 
 router = APIRouter(prefix="/api/plex", tags=["plex"])
 log = logs.get_logger(__name__)
 
 
+# How many "Known for" titles the person page shows (the stored pool is deeper; see plex.tmdb).
+_KNOWN_FOR_SHOWN = 15
+
+
 def _resolve_known_for(
     db: Session,
     known_for: list | None,
     uid: int,
     movie_lib_ids: list[int],
     show_lib_ids: list[int],
+    lang: str,
 ) -> list[dict]:
-    """The person's TMDB "Known for" credits (top by popularity) that are IN our library, as cards, in
-    popularity order. Matched by the canonical guid `tmdb:<id>`; out-of-library credits are dropped."""
+    """The person's TMDB "Known for" credits (most-voted first) that are IN our library, as cards, in
+    that order, at most _KNOWN_FOR_SHOWN. Matched by the canonical guid `tmdb:<id>`; out-of-library
+    credits are dropped."""
     if not known_for:
         return []
     # Match each credit to a library row by guid, bucketed by media_type (movie ids and tv ids collide
@@ -50,10 +57,10 @@ def _resolve_known_for(
         # A credit resolves against its OWN media_type's bucket only.
         if k.get("media_type") == "tv":
             if g in shows:
-                out.append(show_card(shows[g], show_statuses.get(shows[g].id, "new")))
+                out.append(show_card(shows[g], show_statuses.get(shows[g].id, "new"), lang=lang))
         elif g in movies:
-            out.append(movie_card(movies[g], m_states.get(movies[g].id)))
-    return out
+            out.append(movie_card(movies[g], m_states.get(movies[g].id), lang=lang))
+    return out[:_KNOWN_FOR_SHOWN]
 
 
 @router.get("/people/cards")
@@ -159,6 +166,7 @@ def _enrich_person_bg(person_id: int) -> None:
 def person_detail(
     name: str,
     background_tasks: BackgroundTasks,
+    lang: str = "en",
     user: User = Depends(current_user),
     db: Session = Depends(get_db),
 ) -> dict:
@@ -171,18 +179,24 @@ def person_detail(
     E5 S6: the first time a page is opened, the person's TMDB bio + "Known for" credits are lazily
     fetched (from the S2-linked `tmdb_person_id`) and persisted, then served from the row on every open.
     The fetch runs OFF the request path (a background task); the first open serves whatever's in the row
-    (bio possibly still null) and the bio lands from the row by the next open.
+    with `enriching` set, and the page asks again until the bio lands. E30 S6: the people_enrich job
+    fetches everyone ahead of time, so this lazy path is only for a person the job hasn't reached yet.
     """
+    lang = norm_lang(lang)
     person = db.execute(select(PlexPerson).where(PlexPerson.name == name)).scalars().first()
     # Lazy one-time bio enrich, scheduled AFTER the response so the TMDB call is never on the serve path.
     # Gated by a per-person cooldown so concurrent/rapid opens (or repeated opens while TMDB is degraded)
     # can't pile background tasks onto the shared threadpool.
-    if (
+    # `enriching` tells the page the bio is on its way (E30 S6): it asks again shortly instead of showing
+    # an empty page until the next open. True while a fetch is pending, including one an earlier open
+    # already reserved.
+    enriching = (
         person is not None
-        and person.tmdb_person_id
+        and bool(person.tmdb_person_id)
         and person.tmdb_enriched_at is None
-        and _should_schedule_enrich(person.id)
-    ):
+        and bool(sysconfig.get_str(db, "tmdb_api_key"))
+    )
+    if enriching and person is not None and _should_schedule_enrich(person.id):
         background_tasks.add_task(_enrich_person_bg, person.id)
     movie_lib_ids, show_lib_ids = content_libs(db)
 
@@ -199,14 +213,16 @@ def person_detail(
                         PlexItem.directors.contains([name]),
                     ),
                 )
-                .order_by(PlexItem.year.desc().nullslast(), func.lower(PlexItem.title))
+                .order_by(
+                    PlexItem.year.desc().nullslast(), collated(title_col(PlexItem, lang), lang)
+                )
                 .limit(_PERSON_SECTION_MAX)
             )
             .scalars()
             .all()
         )
         states = rollup.item_state_map(db, user.id, [it.id for it in items])
-        movies = [movie_card(it, states.get(it.id)) for it in items]
+        movies = [movie_card(it, states.get(it.id), lang=lang) for it in items]
 
     shows: list[dict] = []
     if show_lib_ids:
@@ -220,28 +236,34 @@ def person_detail(
                         PlexShow.directors.contains([name]),
                     ),
                 )
-                .order_by(PlexShow.year.desc().nullslast(), func.lower(PlexShow.title))
+                .order_by(
+                    PlexShow.year.desc().nullslast(), collated(title_col(PlexShow, lang), lang)
+                )
                 .limit(_PERSON_SECTION_MAX)
             )
             .scalars()
             .all()
         )
         statuses = rollup.state_map(db, user.id, [s.id for s in show_rows])
-        shows = [show_card(sh, statuses.get(sh.id, "new")) for sh in show_rows]
+        shows = [show_card(sh, statuses.get(sh.id, "new"), lang=lang) for sh in show_rows]
 
     known_for = _resolve_known_for(
-        db, person.known_for if person else None, user.id, movie_lib_ids, show_lib_ids
+        db, person.known_for if person else None, user.id, movie_lib_ids, show_lib_ids, lang
     )
     return {
         "name": name,
         "photo": person.photo_thumb if person else None,
-        "biography": person.biography if person else None,
+        # The Hungarian biography for a Hungarian reader, the instance-language one when TMDB has none.
+        "biography": ((person.biography_hu if lang == "hu" else None) or person.biography)
+        if person
+        else None,
         "birthday": person.birthday if person else None,
         "deathday": person.deathday if person else None,
         "place_of_birth": person.place_of_birth if person else None,
         "known_for_department": person.known_for_department if person else None,
         "also_known_as": (person.also_known_as if person else None) or [],
         "known_for": known_for,
+        "enriching": enriching,
         "movies": movies,
         "shows": shows,
     }

backend/app/routes/plex/playback.py

@@ -1,6 +1,5 @@
 """Plex playback: image/subtitle proxies, HLS streaming, and watch-state writes."""
 
-import hashlib
 import threading
 from datetime import datetime, timedelta, timezone
 
@@ -214,24 +213,31 @@ def _resume_push_superseded(user_id: int, item_id: int, intent: datetime) -> boo
 
 @router.get("/person-image")
 def person_image(u: str, request: Request) -> Response:
-    """Proxy a cast/crew photo from Plex's public metadata CDN (host-whitelisted; no token needed).
-    Signed-session auth (no DB) so it, like /image, never holds a pool connection during the fetch."""
+    """Proxy a cast/crew photo from Plex's public metadata CDN (only a headshot-shaped URL on its host;
+    no token needed), resized through Plex and cached (plex.people.cache_portrait; the people_enrich job
+    fills the same cache ahead of time). Signed-session auth; like /image, the DB session is released
+    before the fetch."""
     _require_session(request)
-    if not u.startswith(plex_people.PERSON_IMG_HOST):
+    if not plex_people.is_portrait_url(u):
         raise refused(400, "image_host")
-    cache_key = "person_" + hashlib.sha1(u.encode()).hexdigest()
-    hit = imgcache.read(cache_key)
+    hit = plex_people.portrait_cached(u)
     if hit:
         return imgcache.response(*hit)
     try:
-        with httpx.Client(timeout=10.0, follow_redirects=True) as c:
-            r = c.get(u)
-            r.raise_for_status()
-    except httpx.HTTPError:
-        raise refused(502, "image_fetch_failed")
-    ct = r.headers.get("content-type", "image/jpeg")
-    imgcache.write(cache_key, r.content, ct)
-    return imgcache.response(r.content, ct)
+        with SessionLocal() as db:
+            plex: PlexClient | None = PlexClient(db)
+    # silent-ok: Plex off is a setting; without its resize the original comes straight from the CDN.
+    except PlexNotConfigured:
+        plex = None
+    try:
+        if plex is None:
+            data, ct = plex_people.cache_portrait(None, u)
+        else:
+            with plex:
+                data, ct = plex_people.cache_portrait(plex, u)
+    except (PlexError, httpx.HTTPError):
+        raise refused(502, "image_fetch_failed") from None
+    return imgcache.response(data, ct)
 
 
 def _push_resume_guarded(

backend/app/routes/plex/playlists.py

@@ -19,7 +19,7 @@ from app.models import (
     PlexState,
     User,
 )
-from app.plex.cards import leaf_card
+from app.plex.cards import display_title, leaf_card, norm_lang
 from app.plex.lookups import by_rating_key
 from app.routes._common import owned_or_404, not_found
 from app.refusal import refused
@@ -137,8 +137,12 @@ def create_playlist(
 
 @router.get("/playlists/{pid}")
 def playlist_detail(
-    pid: int, user: User = Depends(current_user), db: Session = Depends(get_db)
+    pid: int,
+    lang: str = "en",
+    user: User = Depends(current_user),
+    db: Session = Depends(get_db),
 ) -> dict:
+    lang = norm_lang(lang)
     pl = owned_or_404(db, PlexPlaylist, pid, user, what="playlist")
     rows = db.execute(_playlist_item_query(pid)).all()
     items = [it for (_pi, it) in rows]
@@ -163,8 +167,9 @@ def playlist_detail(
         leaf_card(
             it,
             states.get(it.id),
-            shows[it.show_id].title if it.show_id in shows else None,
+            display_title(shows[it.show_id], lang) if it.show_id in shows else None,
             shows[it.show_id].rating_key if it.show_id in shows else None,
+            lang=lang,
         )
         for it in items
     ]

backend/app/routes/sync.py

@@ -71,7 +71,7 @@ def sync_status(user: User = Depends(current_user), db: Session = Depends(get_db
 def my_status(user: User = Depends(current_user), db: Session = Depends(get_db)) -> dict:
     """Per-user sync progress: how far the channels *this* user subscribes to have synced."""
     sub_join = and_(Subscription.channel_id == Channel.id, Subscription.user_id == user.id)
-    total, details_synced, recent_synced, deep_done = db.execute(
+    total, details_synced, recent_synced, all_deep_done = db.execute(
         select(
             func.count(Channel.id),
             func.count(Channel.details_synced_at),
@@ -82,7 +82,7 @@ def my_status(user: User = Depends(current_user), db: Session = Depends(get_db))
         .join(Subscription, sub_join)
     ).one()
     total = total or 0
-    deep_done = int(deep_done or 0)
+    all_deep_done = int(all_deep_done or 0)
 
     # Per-user full-history (deep) backfill: channels this user has opted in, and an ETA
     # for the still-pending ones (quota-bound estimate).
@@ -97,6 +97,10 @@ def my_status(user: User = Depends(current_user), db: Session = Depends(get_db))
         .all()
     )
     deep_eta = estimate_deep_backfill(db, deep_requested_channels)
+    # "done / requested" is shown as one ratio, so both halves count the SAME channels: the ones this
+    # user asked full history for. Counting every subscribed channel whose back-catalog happens to be
+    # complete (another user asked, or it was short) gave "342/329".
+    deep_done = sum(1 for c in deep_requested_channels if c.backfill_done)
 
     my_videos = db.scalar(
         select(func.count(Video.id)).join(
@@ -117,7 +121,7 @@ def my_status(user: User = Depends(current_user), db: Session = Depends(get_db))
         "channels_recent_synced": recent_synced,
         "channels_deep_done": deep_done,
         "channels_recent_pending": total - recent_synced,
-        "channels_deep_pending": total - deep_done,
+        "channels_deep_pending": total - all_deep_done,
         "channels_deep_requested": len(deep_requested_channels),
         "deep_pending_count": deep_eta["channels_pending"],
         "deep_eta_seconds": deep_eta["eta_seconds"],

backend/app/scheduler.py

@@ -18,6 +18,7 @@ from app.downloads.gc import run_download_gc
 from app.models import SchedulerSetting, User
 from app.plex.sync import sync as run_plex_sync
 from app.plex.tmdb import run_enrich as run_tmdb_enrich
+from app.plex.tmdb import run_people_enrich
 from app.plex.watch_sync import run_plex_watch_reconcile, run_plex_watch_sync
 from app.notifications import create_notification
 from app.state import is_sync_paused
@@ -69,6 +70,7 @@ JOB_INTERVALS: dict[str, int] = {
     "plex_watch_sync": settings.plex_watch_sync_interval_min,
     "plex_watch_reconcile": settings.plex_watch_reconcile_interval_min,
     "tmdb_enrich": settings.tmdb_enrich_interval_min,
+    "people_enrich": settings.people_enrich_interval_min,
     "audit_gc": settings.audit_gc_minutes,
     "log_gc": settings.log_gc_minutes,
 }
@@ -115,7 +117,9 @@ def _record(name: str, **fields) -> None:
         _activity.setdefault(name, {}).update(fields)
 
 
-def _notify_done(db, actor_id: int, job_id: str, status: str, summary: str | None) -> None:
+def _notify_done(
+    db, actor_id: int, job_id: str, status: str, summary: str | None, result: dict | None = None
+) -> None:
     """Post a completion notice to the triggering admin's inbox (manual runs only). Best
     effort — a notification failure must never mask the job's own outcome."""
     try:
@@ -125,7 +129,7 @@ def _notify_done(db, actor_id: int, job_id: str, status: str, summary: str | Non
             type="scheduler",
             title=f"{job_id}: {status}",  # English fallback; UI renders translated from data
             body=summary,
-            data={"job_id": job_id, "status": status, "summary": summary},
+            data={"job_id": job_id, "status": status, "summary": summary, "result": result},
         )
     except Exception:
         db.rollback()
@@ -140,7 +144,12 @@ def _run_changed(result) -> bool:
     if result is None:
         return False
     if isinstance(result, dict):
-        return any(isinstance(v, (int, float)) and v for v in result.values())
+        # A phased job (backfill's recent/deep, people_enrich's bios/portraits) nests a result per
+        # phase: a count inside a phase is a change too.
+        return any(
+            _run_changed(v) if isinstance(v, dict) else isinstance(v, (int, float)) and bool(v)
+            for v in result.values()
+        )
     if isinstance(result, (int, float)):
         return result != 0
     return bool(result)
@@ -152,6 +161,9 @@ def _audit_run(db, actor_id, job_id, status, summary, result) -> None:
     they changed something, so routine no-op polls don't spam the trail. Best-effort."""
     if actor_id is None and status == "ok" and not _run_changed(result):
         return
+    # The result as data too (E30): the audit log names it in the reader's language, as the inbox
+    # does; `summary` stays the English line of the row's own summary column.
+    data = _result_data(result)
     try:
         audit.record(
             db,
@@ -160,7 +172,7 @@ def _audit_run(db, actor_id, job_id, status, summary, result) -> None:
             target_type="job",
             target_id=job_id,
             summary=f"{job_id}: {status}" + (f" — {summary}" if summary else ""),
-            after={"status": status, "summary": summary},
+            after={"status": status, "summary": summary, **({"result": data} if data else {})},
         )
         db.commit()
     except Exception:
@@ -192,25 +204,41 @@ def _job(name: str, fn) -> None:
                 status="skipped",
                 last_finished=_now_iso(),
                 last_result="paused",
+                result=_PAUSED,
                 progress=None,
             )
             if actor_id is not None:
-                _notify_done(db, actor_id, name, "skipped", "sync paused")
-                _audit_run(db, actor_id, name, "skipped", "sync paused", None)
+                _notify_done(db, actor_id, name, "skipped", "sync paused", _PAUSED)
+                _audit_run(db, actor_id, name, "skipped", "sync paused", _PAUSED)
             return
         with progress.bind(sink):
             result = fn(db)
         summary = _summarize(result)
+        data = _result_data(result)
         log.info("job %s -> %s", name, result)
-        _record(name, status="ok", last_finished=_now_iso(), last_result=summary, progress=None)
+        _record(
+            name,
+            status="ok",
+            last_finished=_now_iso(),
+            last_result=summary,
+            result=data,
+            progress=None,
+        )
         if actor_id is not None:
-            _notify_done(db, actor_id, name, "ok", summary)
+            _notify_done(db, actor_id, name, "ok", summary, data)
         _audit_run(db, actor_id, name, "ok", summary, result)
     except Exception as exc:
         db.rollback()
         log.exception("job %s failed", name, extra=logs.event("scheduler.job.failed", job=name))
         err = str(exc) or exc.__class__.__name__
-        _record(name, status="error", last_finished=_now_iso(), last_error=err, progress=None)
+        _record(
+            name,
+            status="error",
+            last_finished=_now_iso(),
+            last_error=err,
+            result=None,
+            progress=None,
+        )
         if actor_id is not None:
             _notify_done(db, actor_id, name, "error", err)
         _audit_run(db, actor_id, name, "error", err, None)
@@ -221,6 +249,21 @@ def _job(name: str, fn) -> None:
         db.close()
 
 
+# A skipped run's result, in the same shape as a job's own `{"skipped": …}`.
+_PAUSED = {"skipped": "sync paused"}
+
+
+def _result_data(result) -> dict | None:
+    """A job's result as the client names it in the reader's language (E30): the dict itself (counts,
+    a `skipped` / `reason` word, a nested dict per phase), `enrich`'s bare count as one. The one-line
+    `_summarize` is the English fallback."""
+    if isinstance(result, dict):
+        return result or None
+    if isinstance(result, int) and not isinstance(result, bool):
+        return {"enriched": result}
+    return None
+
+
 def _summarize(result) -> str | None:
     """Compact one-line rendering of a job's return value for the dashboard."""
     if result is None:
@@ -259,6 +302,7 @@ def scheduler_snapshot() -> dict:
                 "last_started": a.get("last_started"),
                 "last_finished": a.get("last_finished"),
                 "last_result": a.get("last_result"),
+                "result": a.get("result"),
                 "last_error": a.get("last_error"),
                 "progress": a.get("progress"),
             }
@@ -369,6 +413,12 @@ def _tmdb_enrich_job() -> None:
     _job("tmdb_enrich", run_tmdb_enrich)
 
 
+def _people_enrich_job() -> None:
+    # Make the people local (E30 S6): a batch of person bios from TMDB and a batch of portraits resized
+    # through Plex, so a person page and a cast strip never wait on an outside service.
+    _job("people_enrich", run_people_enrich)
+
+
 def _audit_gc_job() -> None:
     # Prune audit-log rows older than the admin-set retention (audit_retention_days; 0 = keep
     # forever). Pure DB, no quota.
@@ -415,6 +465,7 @@ JOB_FUNCS: dict[str, Callable[[], None]] = {
     "plex_watch_sync": _plex_watch_sync_job,
     "plex_watch_reconcile": _plex_watch_reconcile_job,
     "tmdb_enrich": _tmdb_enrich_job,
+    "people_enrich": _people_enrich_job,
     "audit_gc": _audit_gc_job,
     "log_gc": _log_gc_job,
 }

backend/app/sync/autotag.py

@@ -115,7 +115,9 @@ _TOPIC_SLUGS = {
     "Tourism": "Travel",
     "Fashion": "Fashion & Beauty",
     "Physical_attractiveness": "Fashion & Beauty",
-    "Humor": "Comedy",
+    # YouTube links the British page (…/wiki/Humour); the key was "Humor", so no channel ever got Comedy
+    # from its topic (E30).
+    "Humour": "Comedy",
     "Entertainment": "Entertainment",
     "Film": "Film",
     "Television_program": "TV",

backend/tests/test_audit_count_rows.py

@@ -0,0 +1,36 @@
+"""E30: an admin action that counts something keeps the count as data in its audit row's `after`, under
+the key the audit log names in the reader's language (`scheduler.result.<key>`, frontend
+auditColumns.tsx) — not only in the English `summary`. A renamed key would fall back to the raw word.
+DB lane (Postgres).
+"""
+
+from sqlalchemy import select
+
+from app.models import AuditLog
+
+
+def _after(db, action: str) -> dict:
+    db.expire_all()
+    return db.execute(select(AuditLog.after).where(AuditLog.action == action)).scalar_one()
+
+
+def test_clearing_the_audit_log_keeps_the_count_as_data(as_user, db, make_user):
+    admin = make_user(email="boss@example.com", role="admin")
+    db.add_all([AuditLog(action="sync_pause"), AuditLog(action="sync_resume")])
+    db.commit()
+    assert as_user(admin).delete("/api/admin/audit").json()["cleared"] == 2
+    assert _after(db, "audit_clear") == {"cleared": 2}
+
+
+def test_a_demo_reset_keeps_the_count_as_data(as_user, db, make_user):
+    admin = make_user(email="boss@example.com", role="admin")
+    seeded = as_user(admin).post("/api/admin/demo/reset").json()["playlists_seeded"]
+    assert _after(db, "demo_reset") == {"playlists_seeded": seeded}
+
+
+def test_a_discovery_purge_keeps_its_counts_as_data(as_user, db, make_user):
+    admin = make_user(email="boss@example.com", role="admin")
+    body = as_user(admin).post("/api/admin/purge-discovery").json()
+    body.pop("ok")
+    assert _after(db, "discovery_purge") == body
+    assert {"videos_deleted", "channels_deleted", "search_videos_deleted"} <= set(body)

backend/tests/test_autotag_topics.py

@@ -0,0 +1,24 @@
+"""A YouTube topic URL's slug → the auto-tag it gives (pure). The slugs are the ones YouTube actually
+links (measured on the owner's channels, 2026-09-29): a key spelled differently from YouTube's page
+never matches, silently — "Humor" sat in the map for months while YouTube links …/wiki/Humour."""
+
+import pytest
+
+from app.sync.autotag import map_topic_slug
+
+
+@pytest.mark.parametrize(
+    ("slug", "tag"),
+    [
+        ("Humour", "Comedy"),
+        ("Video_game_culture", "Gaming"),
+        ("Electronic_music", "Music"),
+        ("Association_football", "Sports"),
+        ("Knowledge", "Education"),
+        ("Physical_fitness", "Health & Fitness"),
+        ("Television_program", "TV"),
+        ("Lifestyle_(sociology)", None),  # YouTube's catch-all: deliberately no tag
+    ],
+)
+def test_a_youtube_topic_slug_gives_its_tag(slug, tag):
+    assert map_topic_slug(slug) == tag

backend/tests/test_collation.py

@@ -0,0 +1,302 @@
+"""E30 S3: every A→Z list the server orders is in the reader's alphabet. The database image is Alpine,
+whose `en_US.utf8` is BYTE order: "Életrajzi" and "Ötödik" sorted after "Zorró" in the feed, the channel
+list, the Plex grid, the genre list. Hungarian puts "Ö" after "O" and "Cs" after "Cu". Needs the DB."""
+
+from fastapi.testclient import TestClient
+
+import app.state as state
+from app.auth import current_user
+from app.collation import sorted_words
+from app.db import get_db
+from app.main import app
+from app.models import (
+    Channel,
+    Playlist,
+    PlaylistItem,
+    PlexCollection,
+    PlexItem,
+    PlexLibrary,
+    Subscription,
+    User,
+    Video,
+)
+from datetime import datetime, timezone
+
+WORDS = ["Zorró", "Életrajzi", "Ötödik", "oroszlán", "Csillag", "Cukor"]
+HU = ["Cukor", "Csillag", "Életrajzi", "oroszlán", "Ötödik", "Zorró"]
+EN = ["Csillag", "Cukor", "Életrajzi", "oroszlán", "Ötödik", "Zorró"]
+
+
+def _user(db, lang: str) -> User:
+    user = User(email=f"collate-{lang}@example.com", preferences={"language": lang})
+    db.add(user)
+    db.flush()
+    return user
+
+
+def _client(db, user, monkeypatch, override_dep) -> TestClient:
+    monkeypatch.setattr(state, "_configured_cache", True)
+    override_dep(get_db, db.info["request"])
+    override_dep(current_user, lambda: user)
+    return TestClient(app)
+
+
+def test_words_sort_in_the_readers_alphabet(db):
+    assert sorted_words(db, WORDS, "hu") == HU
+    assert sorted_words(db, WORDS, "en") == EN
+    assert sorted_words(db, WORDS, "xx") == EN  # an unknown language sorts as English
+    assert sorted_words(db, [], "hu") == []
+
+
+def _seed_feed(db, user):
+    db.add(Channel(id="UCc", title="Channel"))
+    db.flush()
+    db.add(Subscription(user_id=user.id, channel_id="UCc", priority=0, hidden=False))
+    db.add_all(
+        Video(
+            id=f"v{i}",
+            channel_id="UCc",
+            published_at=datetime(2024, 1, i + 1, tzinfo=timezone.utc),
+            title=w,
+            is_short=False,
+            live_status="none",
+            via_search=False,
+            via_explore=False,
+        )
+        for i, w in enumerate(WORDS)
+    )
+    db.commit()
+
+
+def test_the_feed_title_sort_pages_in_the_readers_alphabet(db, monkeypatch, override_dep):
+    user = _user(db, "hu")
+    _seed_feed(db, user)
+    client = _client(db, user, monkeypatch, override_dep)
+
+    full = [it["title"] for it in client.get("/api/feed?sort=title&limit=50").json()["items"]]
+    assert full == HU
+    # The cursor compares with the same collated expression, so paging walks the same order.
+    walked: list[str] = []
+    cursor = None
+    for _ in range(len(WORDS)):
+        url = "/api/feed?sort=title&limit=2" + (f"&cursor={cursor}" if cursor else "")
+        body = client.get(url).json()
+        walked += [it["title"] for it in body["items"]]
+        cursor = body["next_cursor"]
+        if not body["has_more"]:
+            break
+    assert walked == HU
+    desc = client.get("/api/feed?sort=title_desc&limit=50").json()["items"]
+    assert [it["title"] for it in desc] == HU[::-1]
+
+
+def test_the_channel_list_is_in_the_readers_alphabet(db, monkeypatch, override_dep):
+    user = _user(db, "hu")
+    db.add_all(Channel(id=f"UC{i}", title=w) for i, w in enumerate(WORDS))
+    db.flush()
+    db.add_all(
+        Subscription(user_id=user.id, channel_id=f"UC{i}", priority=0, hidden=False)
+        for i in range(len(WORDS))
+    )
+    db.commit()
+    r = _client(db, user, monkeypatch, override_dep).get("/api/channels")
+    assert [c["title"] for c in r.json()] == HU
+
+
+def _seed_plex(db):
+    lib = PlexLibrary(plex_key="1", title="Movies", kind="movie", enabled=True)
+    db.add(lib)
+    db.flush()
+    col = PlexCollection(rating_key="col1", library_id=lib.id, title="Set", child_count=len(WORDS))
+    db.add(col)
+    db.add_all(
+        PlexItem(
+            rating_key=f"m{i}",
+            library_id=lib.id,
+            kind="movie",
+            title=f"EN {i}",
+            title_hu=w,
+            year=2000,
+            genres_hu=[w],
+            collection_keys=["col1"],
+        )
+        for i, w in enumerate(WORDS)
+    )
+    db.commit()
+
+
+def _plex(db, monkeypatch, override_dep) -> TestClient:
+    user = _user(db, "hu")
+    _seed_plex(db)
+    return _client(db, user, monkeypatch, override_dep)
+
+
+def test_the_plex_grid_sorts_by_the_hungarian_title(db, monkeypatch, override_dep):
+    client = _plex(db, monkeypatch, override_dep)
+    grid = client.get("/api/plex/library?scope=movie&sort=title&sort_dir=asc&lang=hu").json()
+    assert [it["title"] for it in grid["items"]] == HU
+
+
+def test_the_plex_genre_list_is_in_the_readers_alphabet(db, monkeypatch, override_dep):
+    client = _plex(db, monkeypatch, override_dep)
+    facets = client.get("/api/plex/facets?scope=movie&lang=hu").json()
+    assert [g["value"] for g in facets["genres"]] == HU
+
+
+def test_a_collection_sorts_by_the_hungarian_title(db, monkeypatch, override_dep):
+    client = _plex(db, monkeypatch, override_dep)
+    members = client.get("/api/plex/collections/col1?sort=title&sort_dir=asc&lang=hu").json()
+    assert [it["title"] for it in members["items"]] == HU
+    # year ties everywhere, so the default (year) order falls through to the title tiebreak
+    default = client.get("/api/plex/collections/col1?lang=hu").json()
+    assert [it["title"] for it in default["items"]] == HU
+
+
+def _seed_discovery(db, user, synced: bool):
+    """Channels the user's playlist holds one video from each, not subscribed: discovery lists them,
+    count-tied, so the title decides. `synced=False` leaves them stubs, which sends the endpoint down
+    its enrich path — the one that re-sorts in Python and has to agree with the ORDER BY."""
+    pl = Playlist(user_id=user.id, name="Mix")
+    db.add(pl)
+    db.flush()
+    stamp = datetime(2024, 1, 1, tzinfo=timezone.utc) if synced else None
+    for i, w in enumerate(WORDS):
+        db.add(Channel(id=f"UCd{i}", title=w, details_synced_at=stamp))
+        db.flush()
+        db.add(
+            Video(
+                id=f"d{i}",
+                channel_id=f"UCd{i}",
+                published_at=datetime(2024, 1, 1, tzinfo=timezone.utc),
+                title="x",
+                is_short=False,
+                live_status="none",
+                via_search=False,
+                via_explore=False,
+            )
+        )
+        db.flush()
+        db.add(PlaylistItem(playlist_id=pl.id, video_id=f"d{i}", position=i))
+    db.commit()
+
+
+def test_channel_discovery_is_in_the_readers_alphabet(db, monkeypatch, override_dep):
+    user = _user(db, "hu")
+    _seed_discovery(db, user, synced=True)
+    r = _client(db, user, monkeypatch, override_dep).get("/api/channels/discovery")
+    assert [c["title"] for c in r.json()] == HU
+
+
+def test_channel_discovery_keeps_that_order_after_enriching(db, monkeypatch, override_dep):
+    import app.routes.channels as channels
+
+    class FakeYouTube:
+        def __init__(self, *a, **k): ...
+        def __enter__(self):
+            return self
+
+        def __exit__(self, *a):
+            return False
+
+        def get_channels(self, ids):
+            return []
+
+    monkeypatch.setattr(channels, "YouTubeClient", FakeYouTube)
+    monkeypatch.setattr(channels, "apply_channel_details", lambda *a, **k: None)
+    user = _user(db, "hu")
+    _seed_discovery(db, user, synced=False)
+    r = _client(db, user, monkeypatch, override_dep).get("/api/channels/discovery")
+    assert [c["title"] for c in r.json()] == HU
+
+
+# --- The other lists the server puts in the reader's alphabet (E30 review): each call site, once. ---
+
+
+def _others(db, n_offset: int = 0) -> list[User]:
+    users = [
+        User(email=f"{w.lower()}@example.com", display_name=w) for w in WORDS
+    ]  # emails and names in WORDS' order
+    db.add_all(users)
+    db.flush()
+    return users
+
+
+def test_the_share_and_message_recipients_are_in_the_readers_alphabet(
+    db, monkeypatch, override_dep
+):
+    from app.models import MessageKey
+
+    user = _user(db, "hu")
+    others = _others(db)
+    db.add_all(
+        MessageKey(
+            user_id=u.id,
+            public_key="k",
+            wrapped_private_key="w",
+            salt="s",
+            wrap_iv="i",
+            key_check="c",
+        )
+        for u in others
+    )
+    db.commit()
+    client = _client(db, user, monkeypatch, override_dep)
+    emails = [r["email"] for r in client.get("/api/downloads/recipients").json()]
+    assert emails == [f"{w.lower()}@example.com" for w in HU]
+    names = [r["name"] for r in client.get("/api/messages/users").json()]
+    assert names == HU
+
+
+def test_the_blocked_channels_are_in_the_readers_alphabet(db, monkeypatch, override_dep):
+    from app.models import BlockedChannel
+
+    user = _user(db, "hu")
+    db.add_all(Channel(id=f"UC{i}", title=w) for i, w in enumerate(WORDS))
+    db.flush()
+    db.add_all(BlockedChannel(user_id=user.id, channel_id=f"UC{i}") for i in range(len(WORDS)))
+    db.commit()
+    r = _client(db, user, monkeypatch, override_dep).get("/api/channels/blocked/list")
+    assert [c["title"] for c in r.json()] == HU
+
+
+def test_the_plex_libraries_and_collections_are_in_the_readers_alphabet(
+    db, monkeypatch, override_dep
+):
+    user = _user(db, "hu")
+    libs = [
+        PlexLibrary(plex_key=str(i), title=w, kind="movie", enabled=True)
+        for i, w in enumerate(WORDS)
+    ]
+    db.add_all(libs)
+    db.flush()
+    db.add_all(
+        PlexCollection(rating_key=f"c{i}", library_id=libs[0].id, title=w, child_count=1)
+        for i, w in enumerate(WORDS)
+    )
+    db.commit()
+    client = _client(db, user, monkeypatch, override_dep)
+    assert [lib["title"] for lib in client.get("/api/plex/libraries").json()["libraries"]] == HU
+    cols = client.get("/api/plex/collections").json()["collections"]
+    assert [c["title"] for c in cols] == HU
+
+
+def test_a_persons_titles_of_one_year_are_in_the_readers_alphabet(db, monkeypatch, override_dep):
+    user = _user(db, "hu")
+    lib = PlexLibrary(plex_key="1", title="Movies", kind="movie", enabled=True)
+    db.add(lib)
+    db.flush()
+    db.add_all(
+        PlexItem(
+            rating_key=f"m{i}",
+            library_id=lib.id,
+            kind="movie",
+            title=f"EN {i}",
+            title_hu=w,
+            year=2000,
+            cast_names=["Anna"],
+        )
+        for i, w in enumerate(WORDS)
+    )
+    db.commit()
+    body = _client(db, user, monkeypatch, override_dep).get("/api/plex/person/Anna?lang=hu").json()
+    assert [m["title"] for m in body["movies"]] == HU

backend/tests/test_discover.py

@@ -180,7 +180,7 @@ def test_continue_watching_merges_both_sources_by_recency(db):
     )
     db.commit()
 
-    got = rails.continue_watching(db, user)
+    got = rails.continue_watching(db, user, lang="en")
     assert [(c["source"], c["id"]) for c in got] == [("plex", "pm1"), ("youtube", "vmed")]
     assert got[0]["remaining_seconds"] == 100 * 60 - 600
 
@@ -208,7 +208,7 @@ def test_continue_watching_is_youtube_only_when_plex_is_off(db):
         ]
     )
     db.commit()
-    assert {c["source"] for c in rails.continue_watching(db, user)} == {"youtube"}
+    assert {c["source"] for c in rails.continue_watching(db, user, lang="en")} == {"youtube"}
 
 
 def test_the_resume_rail_obeys_the_channel_blocklist(db):
@@ -227,13 +227,13 @@ def test_the_resume_rail_obeys_the_channel_blocklist(db):
         )
     )
     db.commit()
-    assert [c["id"] for c in rails.continue_watching(db, user)] == ["vmed"]
+    assert [c["id"] for c in rails.continue_watching(db, user, lang="en")] == ["vmed"]
 
     db.add(BlockedChannel(user_id=user.id, channel_id=ch.id))
     db.commit()
-    assert rails.continue_watching(db, user) == []
+    assert rails.continue_watching(db, user, lang="en") == []
     # And so the hero, whose resume tier draws from that rail, has nothing to offer either.
-    assert hero.pick(db, user, "any", 0) is None
+    assert hero.pick(db, user, "any", 0, lang="en") is None
 
 
 def test_a_null_timestamp_sorts_last(db):
@@ -263,7 +263,7 @@ def test_a_null_timestamp_sorts_last(db):
         ]
     )
     db.commit()
-    got = rails.continue_watching(db, user)
+    got = rails.continue_watching(db, user, lang="en")
     assert got[0]["id"] == "vshort"
     assert len(got) == 3
 
@@ -283,7 +283,7 @@ def test_hero_prefers_resume_and_labels_the_tier(db):
         )
     )
     db.commit()
-    got = hero.pick(db, user, "any", seed=1)
+    got = hero.pick(db, user, "any", seed=1, lang="en")
     assert got["tier"] == "resume"
     assert got["card"]["id"] == "vmed"
 
@@ -302,7 +302,7 @@ def test_hero_skips_a_resume_that_does_not_fit_the_budget(db):
         )
     )
     db.commit()
-    got = hero.pick(db, user, "short", seed=1)
+    got = hero.pick(db, user, "short", seed=1, lang="en")
     assert got["tier"] == "surprise"
     assert got["card"]["duration_seconds"] <= BANDS["short"][1]
 
@@ -312,7 +312,7 @@ def test_hero_falls_back_to_the_shelf_before_guessing(db):
     user, ch = _seed_yt(db)
     db.add(ComfortPin(user_id=user.id, video_id="vmed", position=0))
     db.commit()
-    got = hero.pick(db, user, "medium", seed=1)
+    got = hero.pick(db, user, "medium", seed=1, lang="en")
     assert got["tier"] == "comfort"
     assert got["card"]["id"] == "vmed"
 
@@ -332,7 +332,7 @@ def test_hero_resolves_a_show_to_the_episode_that_would_play(db):
         )
     )
     db.commit()
-    got = hero.pick(db, user, "any", seed=1)
+    got = hero.pick(db, user, "any", seed=1, lang="en")
     assert got["tier"] == "resume"
     assert got["card"]["kind"] == "episode"
     assert got["card"]["id"] == "ps1e2"  # ep1 is finished → ep2 is what plays
@@ -345,17 +345,19 @@ def test_hero_is_none_when_nothing_fits(db):
     user, ch = _seed_yt(db)
     db.execute(text("DELETE FROM videos WHERE id = 'vlong'"))
     db.commit()
-    assert hero.pick(db, user, "long", seed=1) is None
+    assert hero.pick(db, user, "long", seed=1, lang="en") is None
 
 
 def test_surprise_is_reproducible_for_a_seed(db):
     """The reroll button depends on this: one seed drives both sources, so the same seed must give
     the same answer and a different seed must be free to give another."""
     user, _ = _seed_yt(db)
-    a = rails.surprise(db, user, "any", seed=7, limit=3)
-    b = rails.surprise(db, user, "any", seed=7, limit=3)
+    a = rails.surprise(db, user, "any", seed=7, limit=3, lang="en")
+    b = rails.surprise(db, user, "any", seed=7, limit=3, lang="en")
     assert [c["id"] for c in a] == [c["id"] for c in b]
-    seeds = {tuple(c["id"] for c in rails.surprise(db, user, "any", s, 3)) for s in range(12)}
+    seeds = {
+        tuple(c["id"] for c in rails.surprise(db, user, "any", s, 3, lang="en")) for s in range(12)
+    }
     assert len(seeds) > 1  # the seed actually reaches the ordering
 
 
@@ -374,7 +376,9 @@ def test_surprise_never_offers_something_already_started(db):
         )
     )
     db.commit()
-    assert "vlong" not in {c["id"] for c in rails.surprise(db, user, "long", seed=3, limit=5)}
+    assert "vlong" not in {
+        c["id"] for c in rails.surprise(db, user, "long", seed=3, limit=5, lang="en")
+    }
 
 
 def test_the_seed_decides_which_source_leads(db):
@@ -384,7 +388,9 @@ def test_the_seed_decides_which_source_leads(db):
     user, _ = _seed_yt(db)
     _seed_plex(db, user)
     _enable_plex(db)
-    leaders = {rails.surprise(db, user, "any", s, limit=1)[0]["source"] for s in range(6)}
+    leaders = {
+        rails.surprise(db, user, "any", s, limit=1, lang="en")[0]["source"] for s in range(6)
+    }
     assert leaders == {"youtube", "plex"}
 
 
@@ -413,10 +419,10 @@ def test_the_reroll_must_be_able_to_move_past_the_resume_tier(db):
     )
     db.commit()
 
-    first = hero.pick(db, user, "any", seed=1)
+    first = hero.pick(db, user, "any", seed=1, lang="en")
     assert first["card"]["id"] == "vmed"
     # Same seed, same everything — only the exclusion differs.
-    second = hero.pick(db, user, "any", seed=1, exclude={"youtube:vmed"})
+    second = hero.pick(db, user, "any", seed=1, exclude={"youtube:vmed"}, lang="en")
     assert second["card"]["id"] == "vshort"
 
 
@@ -438,7 +444,7 @@ def test_the_reroll_rotates_which_tier_answers(db):
     )
     db.add(ComfortPin(user_id=user.id, video_id="vlong", position=0))
     db.commit()
-    tiers = [hero.pick(db, user, "any", seed=1, start=n)["tier"] for n in range(4)]
+    tiers = [hero.pick(db, user, "any", seed=1, start=n, lang="en")["tier"] for n in range(4)]
     assert tiers == ["resume", "comfort", "surprise", "resume"]
 
 
@@ -447,7 +453,7 @@ def test_the_rotation_still_falls_through_an_empty_tier(db):
     Here there is no shelf at all, so the comfort-led press has to answer from somewhere else."""
     user, _ = _seed_yt(db)
     assert db.execute(select(func.count()).select_from(ComfortPin)).scalar_one() == 0
-    got = hero.pick(db, user, "any", seed=1, start=1)
+    got = hero.pick(db, user, "any", seed=1, start=1, lang="en")
     assert got is not None and got["tier"] != "comfort"
 
 
@@ -468,10 +474,10 @@ def test_excluding_a_show_also_excludes_the_episode_it_resolves_to(db):
     )
     db.commit()
 
-    shown = hero.pick(db, user, "any", seed=1)
+    shown = hero.pick(db, user, "any", seed=1, lang="en")
     assert shown["card"]["id"] == "ps1e1"  # the show resolved to its in-progress episode
     # Excluding what the USER saw — the show — must move the tier on, not return the episode again.
-    after = hero.pick(db, user, "any", seed=1, exclude={"plex:ps1"})
+    after = hero.pick(db, user, "any", seed=1, exclude={"plex:ps1"}, lang="en")
     assert after is None or after["card"]["id"] != "ps1e1"
 
 
@@ -518,7 +524,7 @@ def test_shelf_resolves_a_channel_to_its_newest_unwatched_video(db):
     user, ch = _seed_yt(db)
     db.add(ComfortPin(user_id=user.id, channel_id=ch.id, position=0))
     db.commit()
-    (card,) = pins.shelf(db, user)
+    (card,) = pins.shelf(db, user, lang="en")
     assert card["kind"] == "channel"
     assert card["unwatched_count"] == 3
     assert card["next"]["id"] == "vshort"  # newest
@@ -538,7 +544,7 @@ def test_shelf_resolves_a_playlist_to_its_first_unwatched_item(db):
     db.add(VideoState(user_id=user.id, video_id="vshort", status="watched", watched_at=NOW))
     db.add(ComfortPin(user_id=user.id, playlist_id=pl.id, position=0))
     db.commit()
-    (card,) = pins.shelf(db, user)
+    (card,) = pins.shelf(db, user, lang="en")
     assert card["kind"] == "playlist"
     assert card["item_count"] == 2
     assert card["next"]["id"] == "vmed"
@@ -585,7 +591,7 @@ def test_the_shelf_resolves_each_channel_and_playlist_on_its_own_terms(db):
 
     got = [
         (c.get("unwatched_count", c.get("item_count")), (c["next"] or {}).get("id"))
-        for c in pins.shelf(db, user)
+        for c in pins.shelf(db, user, lang="en")
     ]
     assert got == [(3, "vshort"), (1, "vother"), (1, "vlong"), (0, None)]
 
@@ -601,14 +607,14 @@ def test_the_shelf_costs_the_same_queries_for_one_pin_or_many(db):
     db.add(ComfortPin(user_id=user.id, channel_id=ch.id, position=0))
     db.add(ComfortPin(user_id=user.id, playlist_id=lists[0].id, position=1))
     db.commit()
-    few = _count_statements(db, lambda: pins.shelf(db, user))
+    few = _count_statements(db, lambda: pins.shelf(db, user, lang="en"))
 
     for i, c in enumerate(extra):
         db.add(ComfortPin(user_id=user.id, channel_id=c.id, position=10 + i))
     for i, p in enumerate(lists[1:]):
         db.add(ComfortPin(user_id=user.id, playlist_id=p.id, position=20 + i))
     db.commit()
-    assert _count_statements(db, lambda: pins.shelf(db, user)) == few
+    assert _count_statements(db, lambda: pins.shelf(db, user, lang="en")) == few
 
 
 def test_a_pinned_video_survives_leaving_the_feed_scope(db):
@@ -619,7 +625,7 @@ def test_a_pinned_video_survives_leaving_the_feed_scope(db):
     db.commit()
     db.execute(delete(Subscription))
     db.commit()
-    (card,) = pins.shelf(db, user)
+    (card,) = pins.shelf(db, user, lang="en")
     assert card["id"] == "vmed"
     assert card["next"]["id"] == "vmed"
 
@@ -633,7 +639,9 @@ def test_the_plex_surprise_obeys_the_time_budget(db):
     _seed_plex(db, user)
     _enable_plex(db)
     drawn = lambda budget: {  # noqa: E731
-        (c["source"], c["id"]) for s in range(6) for c in rails.surprise(db, user, budget, s, 5)
+        (c["source"], c["id"])
+        for s in range(6)
+        for c in rails.surprise(db, user, budget, s, 5, lang="en")
     }
     assert ("plex", "pm1") not in drawn("short")
     # …and it IS offered where it fits, so this cannot pass by the rail being empty.
@@ -658,7 +666,9 @@ def test_the_plex_surprise_never_offers_something_already_started(db):
     )
     db.commit()
     drawn = {
-        (c["source"], c["id"]) for s in range(6) for c in rails.surprise(db, user, "long", s, 5)
+        (c["source"], c["id"])
+        for s in range(6)
+        for c in rails.surprise(db, user, "long", s, 5, lang="en")
     }
     assert ("plex", "pm1") not in drawn
 
@@ -682,7 +692,7 @@ def test_a_new_pin_lands_at_the_end_even_after_a_hole(db):
 
     db.add(ComfortPin(user_id=user.id, channel_id=ch.id, position=pins.next_position(db, user)))
     db.commit()
-    assert [c["kind"] for c in pins.shelf(db, user)] == ["video", "channel"]
+    assert [c["kind"] for c in pins.shelf(db, user, lang="en")] == ["video", "channel"]
     positions = (
         db.execute(select(ComfortPin.position).order_by(ComfortPin.position)).scalars().all()
     )
@@ -695,7 +705,7 @@ def test_a_self_playing_pin_does_not_reference_itself(db):
     user, _ = _seed_yt(db)
     db.add(ComfortPin(user_id=user.id, video_id="vmed", position=0))
     db.commit()
-    (card,) = pins.shelf(db, user)
+    (card,) = pins.shelf(db, user, lang="en")
     assert card["next"] is not card
     assert "next" not in card["next"]
 
@@ -718,7 +728,7 @@ def test_the_resume_rail_says_what_would_actually_play(db):
         )
     )
     db.commit()
-    rail = rails.continue_watching(db, user)
+    rail = rails.continue_watching(db, user, lang="en")
     tile = next(c for c in rail if c["kind"] == "show")
     assert tile["id"] == "ps1"  # still the show
     assert tile["next"]["kind"] == "episode"
@@ -762,7 +772,7 @@ def test_only_a_show_row_pays_for_a_resolution(db):
     )
     db.commit()
 
-    rail = rails.continue_watching(db, user)
+    rail = rails.continue_watching(db, user, lang="en")
     # A video, a movie and a show — one row of each kind that can appear here, so the assertion below
     # actually exercises both sides of the equality.
     assert {c["kind"] for c in rail} == {"video", "movie", "show"}
@@ -778,7 +788,7 @@ def test_next_episode_takes_an_episode_with_no_state_row_at_all(db):
     _, show, ep1 = _seed_plex(db, user)
     db.add(PlexState(user_id=user.id, item_id=ep1.id, status="watched", watched_at=NOW))
     db.commit()  # ep2 has NO PlexState row
-    assert queries.next_episode(db, user.id, show.id)["id"] == "ps1e2"
+    assert queries.next_episode(db, user.id, show.id, lang="en")["id"] == "ps1e2"
 
 
 def test_a_finished_show_starts_again_from_the_top(db):
@@ -793,7 +803,7 @@ def test_a_finished_show_starts_again_from_the_top(db):
         ]
     )
     db.commit()
-    assert queries.next_episode(db, user.id, show.id)["id"] == "ps1e1"
+    assert queries.next_episode(db, user.id, show.id, lang="en")["id"] == "ps1e1"
 
 
 def test_next_episode_agrees_with_the_show_page_when_two_are_in_progress(db):
@@ -825,12 +835,16 @@ def test_next_episode_agrees_with_the_show_page_when_two_are_in_progress(db):
     )
     db.commit()
 
-    got = queries.next_episode(db, user.id, show.id)
+    got = queries.next_episode(db, user.id, show.id, lang="en")
     assert got["id"] == "ps1e2"
     # Asserted against the other implementation rather than against a literal, so the two cannot
     # drift apart again without this failing.
     ordered = [
-        leaf_card(ep, db.execute(select(PlexState).where(PlexState.item_id == ep.id)).scalar_one())
+        leaf_card(
+            ep,
+            db.execute(select(PlexState).where(PlexState.item_id == ep.id)).scalar_one(),
+            lang="en",
+        )
         for ep in (ep1, ep2)
     ]
     assert rollup.rollup(ordered)["resume"]["id"] == got["id"]
@@ -848,7 +862,7 @@ def test_next_episode_prefers_the_one_in_progress(db):
         ]
     )
     db.commit()
-    assert queries.next_episode(db, user.id, show.id)["id"] == "ps1e2"
+    assert queries.next_episode(db, user.id, show.id, lang="en")["id"] == "ps1e2"
 
 
 # ── HTTP surface ──────────────────────────────────────────────────────────────────────────────────

backend/tests/test_download_share_notice.py

@@ -0,0 +1,41 @@
+"""E30: the "shared with you" notice carries the download's title in its data, so the client can name
+the notice in the reader's language. Its stored title is an English sentence ("Cats was shared with
+you") — the only place the title lived, so a Hungarian reader got the English. Needs the DB."""
+
+from sqlalchemy import select
+
+from app.models import DownloadJob, MediaAsset, Notification
+
+
+def test_a_share_notice_carries_the_title_and_the_sharer(db, make_user, as_user):
+    owner = make_user("owner@example.com")
+    friend = make_user("friend@example.com")
+    asset = MediaAsset(
+        source_kind="url", source_ref="share-e30", format_sig="sig", status="ready", ref_count=1
+    )
+    db.add(asset)
+    db.flush()
+    job = DownloadJob(
+        user_id=owner.id,
+        asset_id=asset.id,
+        source_kind="url",
+        source_ref="share-e30",
+        status="done",
+        queue_pos=1,
+        profile_snapshot={},
+        display_name="Cats",
+    )
+    db.add(job)
+    db.commit()
+
+    r = as_user(owner).post(f"/api/downloads/{job.id}/share", json={"email": "friend@example.com"})
+    assert r.status_code == 200, r.text
+
+    notice = db.execute(select(Notification).where(Notification.user_id == friend.id)).scalar_one()
+    assert notice.type == "download_shared"
+    assert notice.data == {
+        "kind": "download_shared",
+        "from": "owner@example.com",
+        "job_id": job.id,
+        "title": "Cats",
+    }

backend/tests/test_my_status_deep.py

@@ -0,0 +1,33 @@
+"""The Stats page's "Full history: done / requested" ratio counts the SAME channels on both sides — the
+ones this user asked full history for. The numerator used to count every subscribed channel whose
+back-catalog was complete (another user had asked, or the channel was short), so the page read
+"342/329". "Channels without full history yet" still counts every subscribed channel. Needs the DB."""
+
+from app.models import Channel, Subscription
+
+
+def test_full_history_ratio_counts_only_the_requested_channels(db, make_user, as_user):
+    user = make_user("deep@example.com")
+    db.add_all(
+        [
+            Channel(id="UCreqdone", title="Requested, done", backfill_done=True),
+            Channel(id="UCreqopen", title="Requested, pending", backfill_done=False),
+            Channel(id="UCdone", title="Not requested, done anyway", backfill_done=True),
+            Channel(id="UCopen", title="Not requested, pending", backfill_done=False),
+        ]
+    )
+    db.flush()
+    db.add_all(
+        [
+            Subscription(user_id=user.id, channel_id="UCreqdone", deep_requested=True),
+            Subscription(user_id=user.id, channel_id="UCreqopen", deep_requested=True),
+            Subscription(user_id=user.id, channel_id="UCdone"),
+            Subscription(user_id=user.id, channel_id="UCopen"),
+        ]
+    )
+    db.commit()
+
+    body = as_user(user).get("/api/sync/my-status").json()
+    assert body["channels_deep_requested"] == 2
+    assert body["channels_deep_done"] == 1  # never more than it is out of
+    assert body["channels_deep_pending"] == 2  # subscribed channels without full history yet

backend/tests/test_plex_cards.py

@@ -11,21 +11,21 @@ from app.plex.cards import movie_card, show_card
 
 def test_movie_card_emits_art_when_art_key_present():
     it = PlexItem(rating_key="m1", kind="movie", title="M", year=2020, art_key="/library/art/1")
-    card = movie_card(it, None)
+    card = movie_card(it, None, lang="en")
     assert card["thumb"] == "/api/plex/image/m1"
     assert card["art"] == "/api/plex/image/m1?variant=art"
 
 
 def test_movie_card_art_is_none_without_art_key():
     it = PlexItem(rating_key="m2", kind="movie", title="M2")
-    assert movie_card(it, None)["art"] is None
+    assert movie_card(it, None, lang="en")["art"] is None
 
 
 def test_show_card_emits_art_when_art_key_present():
     sh = PlexShow(rating_key="s1", title="S", art_key="/library/art/2")
-    assert show_card(sh)["art"] == "/api/plex/image/s1?variant=art"
+    assert show_card(sh, lang="en")["art"] == "/api/plex/image/s1?variant=art"
 
 
 def test_show_card_art_is_none_without_art_key():
     sh = PlexShow(rating_key="s2", title="S2")
-    assert show_card(sh)["art"] is None
+    assert show_card(sh, lang="en")["art"] is None

backend/tests/test_plex_detail.py

@@ -352,3 +352,52 @@ def test_show_detail_lazy_fills_when_unenriched(db, monkeypatch, override_dep):
     assert show.imdb_id == "tt0068646"  # persisted for next time
     assert show.people_enriched_at is not None
     assert [c["name"] for c in show.full_cast] == ["Marlon Brando", "Al Pacino"]
+
+
+def test_item_detail_names_tracks_from_their_language_not_plexs_title(
+    db, monkeypatch, override_dep
+):
+    """E30: Plex titles a track in the Plex SERVER's language ("English (AC3 5.1)", "magyar Forced",
+    "中文 (EAC3 Stereo)"), so a Hungarian reader got a mix. The route sends what the client names it
+    from instead — the language tag, the forced / SDH flags, the codec tail — keeping Plex's title
+    only as the fallback, and no invented English "Audio 2" for a track with neither."""
+    lib = PlexLibrary(plex_key="1", title="Movies", kind="movie", enabled=True)
+    db.add(lib)
+    db.flush()
+    db.add(PlexItem(rating_key="m1", library_id=lib.id, kind="movie", title="T"))
+    db.commit()
+    user = _user(db, "tracks@example.com")
+    db.commit()
+    streams = [
+        {"streamType": 2, "displayTitle": "English (AC3 5.1)", "languageTag": "en-US"},
+        {"streamType": 2, "displayTitle": "中文 (EAC3 Stereo)", "languageTag": "zh"},
+        {"streamType": 2},
+        {
+            "streamType": 3,
+            "displayTitle": "magyar Forced",
+            "languageTag": "hu",
+            "forced": True,
+            "codec": "srt",
+        },
+        {
+            "streamType": 3,
+            "displayTitle": "English SDH",
+            "languageTag": "en",
+            "hearingImpaired": True,
+            "codec": "srt",
+        },
+    ]
+    meta = {**RICH_META, "Media": [{"Part": [{"Stream": streams}]}]}
+    monkeypatch.setattr(detail_routes, "PlexClient", lambda db: _StubClient(meta))
+    body = _get(db, user, monkeypatch, override_dep, "/api/plex/item/m1").json()
+
+    naming = ("label", "lang_tag", "forced", "hearing_impaired", "detail")
+    assert [tuple(a[k] for k in naming) for a in body["audio_streams"]] == [
+        ("English (AC3 5.1)", "en-US", False, False, "AC3 5.1"),
+        ("中文 (EAC3 Stereo)", "zh", False, False, "EAC3 Stereo"),
+        (None, None, False, False, None),
+    ]
+    assert [tuple(s[k] for k in naming) for s in body["subtitle_streams"]] == [
+        ("magyar Forced", "hu", True, False, None),
+        ("English SDH", "en", False, True, None),
+    ]

backend/tests/test_plex_lang.py

@@ -12,7 +12,19 @@ import app.state as state
 from app.auth import current_user
 from app.db import get_db
 from app.main import app
-from app.models import PlexItem, PlexLibrary, User
+from app import sysconfig
+from app.plex.cards import display_summary, display_title
+from app.models import (
+    PlexCollection,
+    PlexItem,
+    PlexLibrary,
+    PlexPlaylist,
+    PlexPlaylistItem,
+    PlexSeason,
+    PlexShow,
+    PlexState,
+    User,
+)
 
 
 def _seed(db):
@@ -30,7 +42,9 @@ def _seed(db):
         summary="English summary.",
         summary_hu="Magyar összefoglaló.",
         genres=["Drama"],
-        genres_hu=["Dráma"],
+        genres_hu=["Dráma", "Akció"],
+        tagline="English tagline.",
+        tagline_hu="Magyar mottó.",
         rating=6.5,
         imdb_rating=None,
         year=2001,
@@ -44,7 +58,9 @@ def _seed(db):
         library_id=lib.id,
         kind="movie",
         title="EN Only",
-        genres=["Comedy"],  # no HU twin
+        summary="English only.",
+        tagline="English only tagline.",
+        genres=["Comedy"],  # no HU twin, never reached by a sync since: no genres_hu
         year=2002,
         added_at=datetime(2024, 1, 2, tzinfo=timezone.utc),
         people_enriched_at=datetime(2024, 1, 2, tzinfo=timezone.utc),
@@ -102,12 +118,52 @@ def test_genre_filter_matches_active_language_vocabulary(db, monkeypatch, overri
     assert miss.json()["items"] == []
 
 
+def test_a_genre_filter_saved_in_english_still_matches_in_hungarian(db, monkeypatch, override_dep):
+    """E30: the HU column holds one Hungarian word per genre. A filter saved while the HU list still
+    offered "Action" is read through the same map, so it finds the "Akció" title instead of nothing."""
+    user = _seed(db)
+    resp = _get(
+        db, user, monkeypatch, override_dep, "/api/plex/library?scope=movie&lang=hu&genres=Action"
+    )
+    assert _titles(resp) == {"Magyar Cím"}
+
+
+def test_a_genre_the_hungarian_list_offers_in_english_still_matches(db, monkeypatch, override_dep):
+    """E30 review: a row the sync has not given Hungarian genres yet is listed under its English word
+    (the facets read coalesce(genres_hu, genres)); filtering by that word must find it."""
+    user = _seed(db)
+    facets = _get(db, user, monkeypatch, override_dep, "/api/plex/facets?scope=movie&lang=hu")
+    assert "Comedy" in {g["value"] for g in facets.json()["genres"]}
+    resp = _get(
+        db, user, monkeypatch, override_dep, "/api/plex/library?scope=movie&lang=hu&genres=Comedy"
+    )
+    assert _titles(resp) == {"EN Only"}
+
+
+def test_a_title_without_a_hungarian_twin_reads_in_english(db, monkeypatch, override_dep):
+    user = _seed(db)
+    body = _get(db, user, monkeypatch, override_dep, "/api/plex/item/m2?lang=hu").json()
+    assert (body["title"], body["summary"], body["tagline"]) == (
+        "EN Only",
+        "English only.",
+        "English only tagline.",
+    )
+    row = PlexItem(title="T", summary="S")
+    assert (display_title(row, "hu"), display_summary(row, "hu")) == ("T", "S")
+    row.title_hu, row.summary_hu = "HT", "HS"
+    assert (display_title(row, "hu"), display_summary(row, "hu")) == ("HT", "HS")
+    assert (display_title(row, "en"), display_summary(row, "en")) == ("T", "S")
+
+
 def test_item_detail_language_and_rating_split(db, monkeypatch, override_dep):
     user = _seed(db)
     resp = _get(db, user, monkeypatch, override_dep, "/api/plex/item/m1?lang=hu")
     body = resp.json()
     assert body["title"] == "Magyar Cím"
     assert body["summary"] == "Magyar összefoglaló."
+    assert body["tagline"] == "Magyar mottó."  # E30: the HU overlay's tagline
+    en = _get(db, user, monkeypatch, override_dep, "/api/plex/item/m1").json()
+    assert en["tagline"] == "English tagline."
     # imdb_rating is IMDb-only (None here); the audience score is served separately as `rating`.
     assert body["imdb_rating"] is None
     assert body["rating"] == 6.5
@@ -147,3 +203,126 @@ def test_rating_filter_prefers_imdb_over_audience(db, monkeypatch, override_dep)
     assert "High IMDb" in _titles(hit)
     miss = _get(db, user, monkeypatch, override_dep, "/api/plex/library?scope=movie&rating_min=9")
     assert "High IMDb" not in _titles(miss)
+
+
+def _seed_rails(db):
+    """`_seed` plus what every card rail reads: a HU-overlaid show with a HU-overlaid episode in
+    progress, a cast name, a collection, and a playlist holding the movie and the episode."""
+    user = _seed(db)
+    m1 = db.query(PlexItem).filter_by(rating_key="m1").one()
+    m1.cast_names = ["Anna"]
+    m1.collection_keys = ["c1"]
+    db.add(PlexCollection(rating_key="c1", library_id=m1.library_id, title="Coll"))
+    tv = PlexLibrary(plex_key="2", title="TV Shows", kind="show", enabled=True)
+    db.add(tv)
+    db.flush()
+    show = PlexShow(
+        rating_key="s1",
+        library_id=tv.id,
+        title="English Show",
+        title_hu="Magyar Sorozat",
+        added_at=datetime(2024, 1, 3, tzinfo=timezone.utc),
+    )
+    db.add(show)
+    db.flush()
+    season = PlexSeason(rating_key="s1s1", show_id=show.id, title="Season 1", season_number=1)
+    db.add(season)
+    db.flush()
+    ep = PlexItem(
+        rating_key="e1",
+        library_id=tv.id,
+        kind="episode",
+        show_id=show.id,
+        season_id=season.id,
+        title="Pilot",
+        title_hu="Kezdet",
+        season_number=1,
+        episode_number=1,
+        duration_s=3000,
+    )
+    db.add(ep)
+    db.flush()
+    db.add(
+        PlexState(
+            user_id=user.id,
+            item_id=ep.id,
+            status="in_progress",
+            position_seconds=600,
+            progress_updated_at=datetime(2024, 2, 1, tzinfo=timezone.utc),
+        )
+    )
+    pl = PlexPlaylist(user_id=user.id, title="Mix")
+    db.add(pl)
+    db.flush()
+    db.add_all(
+        [
+            PlexPlaylistItem(playlist_id=pl.id, item_id=m1.id, position=0),
+            PlexPlaylistItem(playlist_id=pl.id, item_id=ep.id, position=1),
+        ]
+    )
+    # TMDB extras: m2 recommends m1 (held) and a title we lack; m1, watched, anchors the recs rail.
+    m1.guid = "tmdb:1"
+    m1.tmdb_enriched_at = datetime(2024, 1, 1, tzinfo=timezone.utc)
+    m1.recommendations = [{"tmdb_id": 2, "title": "EN Only", "media_type": "movie"}]
+    m2 = db.query(PlexItem).filter_by(rating_key="m2").one()
+    m2.guid = "tmdb:2"
+    m2.tmdb_enriched_at = datetime(2024, 1, 1, tzinfo=timezone.utc)
+    m2.recommendations = [
+        {"tmdb_id": 1, "title": "English Title", "media_type": "movie"},
+        {"tmdb_id": 77, "title": "Elsewhere", "media_type": "movie"},
+    ]
+    db.add(
+        PlexState(
+            user_id=user.id,
+            item_id=m1.id,
+            status="watched",
+            watched_at=datetime(2024, 3, 1, tzinfo=timezone.utc),
+        )
+    )
+    sysconfig.set_value(db, "plex_enabled", True)
+    db.commit()
+    return user, pl.id
+
+
+def test_every_card_rail_serves_the_readers_language(db, monkeypatch, override_dep):
+    """E30: the grid spoke Hungarian, but every other card surface (Discover rails, show page,
+    search, collection, person page, playlist, Home) served the English title to a HU reader."""
+    user, pid = _seed_rails(db)
+
+    def get(path):
+        return _get(db, user, monkeypatch, override_dep, path).json()
+
+    def titles(cards):
+        return {c["title"] for c in cards}
+
+    rails = get("/api/plex/discover?scope=both&lang=hu")
+    assert {"Magyar Cím", "Magyar Sorozat"} <= titles(rails["recently_added"])
+    assert "Magyar Sorozat" in titles(rails["continue_watching"])
+    assert titles(get("/api/plex/show/s1?lang=hu")["seasons"][0]["episodes"]) == {"Kezdet"}
+    found = get("/api/plex/library?scope=both&lang=hu&q=Kezdet")["episodes"]
+    assert [(e["title"], e["show_title"]) for e in found] == [("Kezdet", "Magyar Sorozat")]
+    assert titles(get("/api/plex/collections/c1?lang=hu")["items"]) == {"Magyar Cím"}
+    assert titles(get("/api/plex/person/Anna?lang=hu")["movies"]) == {"Magyar Cím"}
+    items = get(f"/api/plex/playlists/{pid}?lang=hu")["items"]
+    assert [(c["title"], c.get("show_title")) for c in items] == [
+        ("Magyar Cím", None),
+        ("Kezdet", "Magyar Sorozat"),
+    ]
+    # A recommendation we hold is named as the library names it; the rail's anchor too.
+    recs = get("/api/plex/item/m2?lang=hu")["tmdb"]["recommendations"]
+    assert [(r["title"], r["in_library"]) for r in recs] == [
+        ("Magyar Cím", True),
+        ("Elsewhere", False),
+    ]
+    byw = get("/api/plex/discover?scope=both&lang=hu")["because_you_watched"]
+    assert byw["anchor"]["title"] == "Magyar Cím"
+    home = get("/api/discover?lang=hu")["continue_watching"]
+    plex = [c for c in home if c["source"] == "plex"]
+    assert [c["title"] for c in plex] == ["Magyar Sorozat"]
+    assert plex[0]["next"]["title"] == "Kezdet"
+    # EN (the default) still serves English on the same rails.
+    items = get(f"/api/plex/playlists/{pid}")["items"]
+    assert [(c["title"], c.get("show_title")) for c in items] == [
+        ("English Title", None),
+        ("Pilot", "English Show"),
+    ]

backend/tests/test_plex_overlay.py

@@ -6,11 +6,16 @@ Uses the DB lane (`db` fixture) — skipped when no Postgres is reachable. Runs
 (migrations 0063/0064) so the JSONB + STORED generated columns are exercised.
 """
 
+from alembic import command
+from alembic.config import Config
 from sqlalchemy import func, select
+from sqlalchemy.orm import Session
 
 import app.plex.sync as syncmod
 from app import sysconfig
-from app.models import PlexItem, PlexLibrary
+from app.db import engine
+from app.models import PlexItem, PlexLibrary, PlexShow
+from app.plex.genres import hu_genre, hu_genres
 from app.plex.sync import _apply_item, _canonical_guid, _sync_overlay
 from app.plex.query import content_libs
 
@@ -244,3 +249,171 @@ def test_content_libs_excludes_overlay_libraries(db):
     assert en_lib.id in movie_ids
     assert overlay.id not in movie_ids  # the HU overlay is never browsable
     assert show_ids == [en_shows.id]
+
+
+class _KindStub:
+    """An overlay section listing per Plex type (2 = show, 4 = episode), like a HU TV section."""
+
+    def __init__(self, by_type: dict[int, list[dict]]):
+        self._by = by_type
+
+    def section_items(self, key, item_type, start, size):
+        items = self._by.get(item_type, [])
+        return items[start : start + size], len(items)
+
+
+def test_a_show_overlay_writes_hungarian_episode_titles_and_summaries(db):
+    """E30: the HU TV section lists every episode in Hungarian; they were never read, so a Hungarian
+    reader saw every episode title and summary in English."""
+    en_lib = PlexLibrary(plex_key="1", title="TV Shows", kind="show")
+    hu_lib = PlexLibrary(plex_key="9", title="Sorozatok", kind="show", metadata_lang="hu")
+    db.add_all([en_lib, hu_lib])
+    db.flush()
+    show = PlexShow(rating_key="s1", library_id=en_lib.id, title="3 Body Problem", guid="tmdb:10")
+    db.add(show)
+    db.flush()
+    ep = PlexItem(
+        rating_key="e1",
+        library_id=en_lib.id,
+        kind="episode",
+        show_id=show.id,
+        title="Countdown",
+        summary="EN.",
+        guid="tmdb:501",
+    )
+    db.add(ep)
+    db.commit()
+    stub = _KindStub(
+        {
+            syncmod._TYPE_SHOW: [_hu_movie("hs", "A 3-test-probléma", "HU.", [], "tmdb://10")],
+            syncmod._TYPE_EPISODE: [
+                _hu_movie("he", "Visszaszámlálás", "Magyar epizód.", [], "tmdb://501")
+            ],
+        }
+    )
+    _sync_overlay(db, stub, hu_lib, en_lib.id, {})
+    db.commit()
+    db.refresh(ep)
+    db.refresh(show)
+    assert (ep.title_hu, ep.summary_hu) == ("Visszaszámlálás", "Magyar epizód.")
+    assert show.title_hu == "A 3-test-probléma"
+
+
+def test_the_overlay_gives_every_row_one_hungarian_word_per_genre(db):
+    """E30: Plex's HU agent mixes "Action" with "Dráma", and a title with no HU twin kept only its
+    English list — so the HU genre list offered "Drama" beside "Dráma"."""
+    en_lib = PlexLibrary(plex_key="4", title="Movies", kind="movie")
+    hu_lib = PlexLibrary(plex_key="9", title="Filmek", kind="movie", metadata_lang="hu")
+    db.add_all([en_lib, hu_lib])
+    db.flush()
+    twin = PlexItem(
+        rating_key="m1",
+        library_id=en_lib.id,
+        kind="movie",
+        title="Heat",
+        guid="tmdb:1",
+        genres=["Action", "Crime"],
+    )
+    lone = PlexItem(
+        rating_key="m2",
+        library_id=en_lib.id,
+        kind="movie",
+        title="Solo",
+        guid="tmdb:2",
+        genres=["Drama", "Science Fiction"],
+    )
+    db.add_all([twin, lone])
+    db.commit()
+    meta = _hu_movie(
+        "h1", "Szemtől szemben", "HU.", ["Action", "Bűnügyi", "Drama", "Dráma"], "tmdb://1"
+    )
+    meta["tagline"] = "Magyar mottó."
+    _sync_overlay(db, _StubPlex([meta]), hu_lib, en_lib.id, {})
+    db.commit()
+    db.refresh(twin)
+    db.refresh(lone)
+    assert twin.genres_hu == ["Akció", "Bűnügyi", "Dráma"]
+    assert twin.tagline_hu == "Magyar mottó."
+    assert lone.genres_hu == ["Dráma", "Sci-Fi"]  # no twin: its own English list, in Hungarian
+    assert lone.tagline_hu is None
+
+
+def test_a_twin_without_genres_keeps_the_rows_own_hungarian_list(db):
+    en_lib = PlexLibrary(plex_key="4", title="Movies", kind="movie")
+    hu_lib = PlexLibrary(plex_key="9", title="Filmek", kind="movie", metadata_lang="hu")
+    db.add_all([en_lib, hu_lib])
+    db.flush()
+    row = PlexItem(
+        rating_key="m1",
+        library_id=en_lib.id,
+        kind="movie",
+        title="Heat",
+        guid="tmdb:1",
+        genres=["Crime"],
+    )
+    db.add(row)
+    db.commit()
+    _sync_overlay(
+        db,
+        _StubPlex([_hu_movie("h1", "Szemtől szemben", "HU.", [], "tmdb://1")]),
+        hu_lib,
+        en_lib.id,
+        {},
+    )
+    db.commit()
+    db.refresh(row)
+    assert (row.title_hu, row.genres_hu) == ("Szemtől szemben", ["Bűnügyi"])
+
+
+def test_every_synced_row_gets_hungarian_genres():
+    """E30 review: not only an overlaid row — the HU facets and filter read genres_hu for all."""
+    from app.plex.sync import _apply_facet_fields
+
+    row = PlexItem(title="Solo")
+    _apply_facet_fields(row, {"Genre": [{"tag": "Drama"}, {"tag": "Action"}]})
+    assert (row.genres, row.genres_hu) == (["Drama", "Action"], ["Dráma", "Akció"])
+
+
+def test_the_genre_map_is_idempotent_and_keeps_an_unknown_word():
+    assert hu_genre("science fiction") == "Sci-Fi"  # case-insensitive
+    assert hu_genre("Dráma") == "Dráma"
+    assert hu_genre("Space Opera") == "Space Opera"  # unknown: shown as Plex gave it, never dropped
+    once = hu_genres(["Drama", "Action", "Dráma"])
+    assert once == ["Dráma", "Akció"]
+    assert hu_genres(once) == once
+    assert hu_genres(None) is None and hu_genres([]) is None
+
+
+def test_0094_gives_every_row_without_a_hungarian_list_one(db):
+    cfg = Config("alembic.ini")
+    command.downgrade(cfg, "0093_plex_person_known_for_votes")
+    upgraded = False
+    try:
+        with Session(engine) as s:
+            lib = PlexLibrary(plex_key="1", title="Movies", kind="movie", enabled=True)
+            s.add(lib)
+            s.flush()
+            rows = {
+                "bare": PlexItem(genres=["Action", "Biography"]),
+                "overlaid": PlexItem(
+                    genres=["Action"], genres_hu=["Kaland"]
+                ),  # its twin's own list
+                "genreless": PlexItem(genres=[]),
+            }
+            for key, row in rows.items():
+                row.rating_key, row.library_id, row.kind, row.title = key, lib.id, "movie", key
+            show = PlexShow(rating_key="s", library_id=lib.id, title="s", genres=["Comedy"])
+            s.add_all([*rows.values(), show])
+            s.commit()
+            ids = {k: r.id for k, r in rows.items()}
+            show_id = show.id
+        command.upgrade(cfg, "head")
+        upgraded = True
+        with Session(engine) as s:
+            got = {k: s.get(PlexItem, i).genres_hu for k, i in ids.items()}  # type: ignore[union-attr]
+            show_hu = s.get(PlexShow, show_id).genres_hu  # type: ignore[union-attr]
+        assert got == {"bare": ["Akció", "Életrajzi"], "overlaid": ["Kaland"], "genreless": None}
+        assert show_hu == ["Vígjáték"]
+    finally:
+        if not upgraded:
+            command.upgrade(cfg, "head")

backend/tests/test_plex_people_enrich.py

@@ -0,0 +1,463 @@
+"""E30 S6: the people are made local ahead of time. The people_enrich job fetches linked people's TMDB
+bios (the most-credited first) and caches their portraits resized through Plex; the person page says
+when a bio is still on its way (`enriching`), so it can ask again instead of staying empty.
+DB lane (Postgres); the portrait cache runs in a temp directory.
+"""
+
+from datetime import datetime, timezone
+
+import httpx
+import pytest
+
+from app import scheduler
+from app.models import PlexItem, PlexLibrary, PlexPerson, User
+from app.plex import imgcache
+from app.plex import people as plex_people
+from app.plex import tmdb as plex_tmdb
+
+CDN = plex_people.PERSON_IMG_HOST + "people/"
+DONE = datetime(2024, 1, 1, tzinfo=timezone.utc)
+
+
+def _movie(db, lib, key, cast):
+    db.add(PlexItem(rating_key=key, library_id=lib.id, kind="movie", title=key, cast_names=cast))
+
+
+def _library(db):
+    lib = PlexLibrary(plex_key="1", title="Movies", kind="movie", enabled=True)
+    db.add(lib)
+    db.flush()
+    return lib
+
+
+class _Tmdb:
+    """A TmdbClient stand-in: records the ids asked for, fails on `fail_on`."""
+
+    def __init__(self, fail_on=()):
+        self.asked: list[int] = []
+        self.fail_on = set(fail_on)
+
+    def fetch_person(self, pid):
+        self.asked.append(pid)
+        if pid in self.fail_on:
+            raise plex_tmdb.TmdbError("429")
+        return {"biography": f"Bio {pid}."}
+
+
+def test_the_batch_takes_the_most_credited_linked_people_first(db):
+    lib = _library(db)
+    _movie(db, lib, "a", ["Often", "Sometimes"])
+    _movie(db, lib, "b", ["Often", "Sometimes"])
+    _movie(db, lib, "c", ["Often", "Unlinked"])
+    db.add_all(
+        [
+            PlexPerson(name="Sometimes", tmdb_person_id=2),
+            PlexPerson(name="Often", tmdb_person_id=1),
+            PlexPerson(name="Unlinked"),  # no TMDB id: nothing to fetch
+            PlexPerson(name="Done", tmdb_person_id=3, tmdb_enriched_at=DONE),
+            PlexPerson(name="Rare", tmdb_person_id=4),  # credited nowhere: last
+        ]
+    )
+    db.commit()
+    tmdb = _Tmdb()
+    assert plex_tmdb.enrich_people_batch(db, tmdb, 2) == {"enriched": 2}  # type: ignore[arg-type]
+    assert tmdb.asked == [1, 2]
+    db.expire_all()
+    often = db.query(PlexPerson).filter_by(name="Often").one()
+    assert often.biography == "Bio 1." and often.tmdb_enriched_at is not None
+    assert db.query(PlexPerson).filter_by(name="Rare").one().tmdb_enriched_at is None  # next run
+
+
+def test_a_failed_lookup_is_skipped_and_the_rest_still_land(db):
+    db.add_all([PlexPerson(name="A", tmdb_person_id=1), PlexPerson(name="B", tmdb_person_id=2)])
+    db.add(PlexPerson(name="C", tmdb_person_id=3))
+    db.commit()
+    tmdb = _Tmdb(fail_on={2})
+    assert plex_tmdb.enrich_people_batch(db, tmdb, 10) == {"enriched": 2, "failed": 1}  # type: ignore[arg-type]
+    assert tmdb.asked == [1, 2, 3]  # B refused: skipped, not the end of the batch
+    db.expire_all()
+    stamped = {p.name: p.tmdb_enriched_at is not None for p in db.query(PlexPerson)}
+    assert stamped == {"A": True, "B": False, "C": True}  # B is tried again next run
+
+
+def test_failures_in_a_row_end_the_batch(db):
+    db.add_all([PlexPerson(name=f"P{i}", tmdb_person_id=i) for i in range(1, 7)])
+    db.commit()
+    tmdb = _Tmdb(fail_on={1, 2, 3, 4, 5, 6})  # TMDB is down
+    assert plex_tmdb.enrich_people_batch(db, tmdb, 10) == {"enriched": 0, "failed": 3}  # type: ignore[arg-type]
+    assert tmdb.asked == [1, 2, 3]
+
+
+def test_failures_between_successes_do_not_end_the_batch(db):
+    db.add_all([PlexPerson(name=f"P{i}", tmdb_person_id=i) for i in range(1, 9)])
+    db.commit()
+    tmdb = _Tmdb(fail_on={1, 3, 5, 7})  # fail, ok, fail, ok, …: never three in a row
+    assert plex_tmdb.enrich_people_batch(db, tmdb, 10) == {"enriched": 4, "failed": 4}  # type: ignore[arg-type]
+    assert tmdb.asked == list(range(1, 9))
+
+
+def test_the_batch_stores_the_hungarian_biography(db):
+    db.add(PlexPerson(name="A", tmdb_person_id=1))
+    db.commit()
+
+    class _WithHu(_Tmdb):
+        def fetch_person(self, pid):
+            return {
+                "biography": "English.",
+                "translations": {
+                    "translations": [{"iso_639_1": "hu", "data": {"biography": "Magyar."}}]
+                },
+            }
+
+    assert plex_tmdb.enrich_people_batch(db, _WithHu(), 10) == {"enriched": 1}  # type: ignore[arg-type]
+    db.expire_all()
+    person = db.query(PlexPerson).one()
+    assert (person.biography, person.biography_hu) == ("English.", "Magyar.")
+
+
+class _Plex:
+    """A PlexClient stand-in. `down`: urls Plex does not answer for (True: none); `dead`: urls Plex
+    answers `gone` for (a dead CDN file: "not found"); `status`: an error status Plex answers every
+    other url with."""
+
+    def __init__(self, down=False, dead=(), status=None, gone=404):
+        self.asked: list[tuple[str, int | None]] = []
+        self.down = down
+        self.dead = set(dead)
+        self.status = status
+        self.gone = gone
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, *a):
+        return False
+
+    def image_bytes(self, url, width=None, height=None):
+        self.asked.append((url, width))
+        if self.down is True or (self.down and url in self.down):
+            raise plex_people.PlexError("down") from httpx.ConnectError("refused")
+        code = self.gone if url in self.dead else self.status
+        if code:
+            req = httpx.Request("GET", url)
+            status = httpx.HTTPStatusError(
+                str(code), request=req, response=httpx.Response(code, request=req)
+            )
+            raise plex_people.PlexError(str(code)) from status
+        return b"small", "image/jpeg"
+
+
+@pytest.fixture
+def cache_dir(tmp_path, monkeypatch):
+    monkeypatch.setattr(imgcache, "CACHE_DIR", tmp_path)
+    return tmp_path
+
+
+@pytest.fixture
+def plex_on(monkeypatch):
+    """The Plex module switched on (the job's gate), with `plex` as its client."""
+    state = {"enabled": True, "plex": _Plex()}
+    monkeypatch.setattr(plex_people.sysconfig, "get_bool", lambda d, k: state["enabled"])
+    monkeypatch.setattr(plex_people, "PlexClient", lambda d: state["plex"])
+    return state
+
+
+def _faces(db, n):
+    db.add_all(
+        [
+            PlexPerson(name=f"P{i}", photo_thumb=plex_people.person_thumb_url(CDN + f"{i}.jpg"))
+            for i in range(n)
+        ]
+    )
+    db.commit()
+
+
+def test_portraits_are_cached_small_and_replace_the_full_size_original(db, cache_dir, plex_on):
+    lib = _library(db)
+    _movie(db, lib, "a", ["Often"])
+    _movie(db, lib, "b", ["Often", "Cached"])
+    db.add_all(
+        [
+            PlexPerson(name="Often", photo_thumb=plex_people.person_thumb_url(CDN + "often.jpg")),
+            PlexPerson(name="Cached", photo_thumb=plex_people.person_thumb_url(CDN + "cached.jpg")),
+            PlexPerson(name="Faceless"),
+        ]
+    )
+    db.commit()
+    small, original = plex_people._portrait_keys(CDN + "often.jpg")
+    imgcache.write(original, b"a big original", "image/jpeg")  # cached without Plex
+    imgcache.write(plex_people._portrait_keys(CDN + "cached.jpg")[0], b"x", "image/jpeg")
+    plex = plex_on["plex"]
+
+    assert plex_people.warm_portraits(db, 10) == {"cached": 1}
+    assert plex.asked == [
+        (CDN + "often.jpg", plex_people.PORTRAIT_BOX)
+    ]  # resized, the cached one skipped
+    assert imgcache.read(small) == (b"small", "image/jpeg")
+    assert not imgcache.has(original)
+
+
+def test_portraits_wait_for_plex(db, cache_dir, plex_on, monkeypatch):
+    _faces(db, 1)
+
+    def not_configured(d):
+        raise plex_people.PlexNotConfigured()
+
+    monkeypatch.setattr(plex_people, "PlexClient", not_configured)
+    assert plex_people.warm_portraits(db, 10) == {"cached": 0, "skipped": "disabled"}
+    assert list(cache_dir.iterdir()) == []  # no full-size originals behind Plex's back
+
+
+def test_portraits_wait_for_the_plex_module_to_be_on(db, cache_dir, plex_on):
+    _faces(db, 1)
+    plex_on["enabled"] = False  # switched off, its server still set up
+    assert plex_people.warm_portraits(db, 10) == {"cached": 0, "skipped": "disabled"}
+    assert plex_on["plex"].asked == []
+
+
+def test_plex_not_answering_ends_the_portrait_run(db, cache_dir, plex_on):
+    _faces(db, 8)
+    plex_on["plex"] = _Plex(down=True)
+    assert plex_people.warm_portraits(db, 100) == {"cached": 0, "failed": 3}
+    assert len(plex_on["plex"].asked) == 3
+    assert not list(cache_dir.glob("*.miss"))  # Plex was down, the files are not to blame
+
+
+@pytest.mark.parametrize("code", [401, 403, 429, 500, 503])
+def test_plex_refusing_is_plex_failing_not_a_dead_file(db, cache_dir, plex_on, code):
+    _faces(db, 8)
+    plex_on["plex"] = _Plex(status=code)  # a rotated token, a busy or broken transcoder
+    assert plex_people.warm_portraits(db, 100) == {"cached": 0, "failed": 3}
+    assert len(plex_on["plex"].asked) == 3
+    assert not list(cache_dir.glob("*.miss"))  # the files are not to blame: asked again next run
+
+
+def test_plex_failing_between_successes_does_not_end_the_run(db, cache_dir, plex_on):
+    _faces(db, 8)
+    plex_on["plex"] = _Plex(down={CDN + f"{i}.jpg" for i in (0, 2, 4, 6)})  # down, ok, down, ok, …
+    assert plex_people.warm_portraits(db, 100) == {"cached": 4, "failed": 4}
+
+
+def test_plex_failing_between_dead_files_does_not_end_the_run(db, cache_dir, plex_on):
+    _faces(db, 8)
+    plex_on["plex"] = _Plex(  # down, dead, down, dead, …: Plex answers in between
+        down={CDN + f"{i}.jpg" for i in (0, 2, 4, 6)}, dead={CDN + f"{i}.jpg" for i in (1, 3, 5, 7)}
+    )
+    assert plex_people.warm_portraits(db, 100) == {"cached": 0, "failed": 8}
+    assert len(plex_on["plex"].asked) == 8
+
+
+@pytest.mark.parametrize("gone", [404, 410])
+def test_dead_headshots_are_left_alone_and_the_rest_still_land(db, cache_dir, plex_on, gone):
+    _faces(db, 8)
+    dead = {CDN + f"{i}.jpg" for i in range(6)}  # more dead files than any failure limit
+    plex_on["plex"] = _Plex(dead=dead, gone=gone)
+    assert plex_people.warm_portraits(db, 100) == {"cached": 2, "failed": 6}
+
+    plex_on["plex"] = again = _Plex(dead=dead, gone=gone)
+    assert plex_people.warm_portraits(db, 100) == {"cached": 0}
+    assert again.asked == []  # dead ones marked, live ones cached: nothing to ask for
+
+
+def test_the_person_image_route(db, cache_dir, monkeypatch):
+    from fastapi.testclient import TestClient
+
+    import app.state as state
+    from app.main import app
+    from app.routes.plex import playback
+
+    monkeypatch.setattr(state, "_configured_cache", True)
+    monkeypatch.setattr(playback, "_require_session", lambda request: 1)
+    client = TestClient(app)
+    url = CDN + "face.jpg"
+    small, original = plex_people._portrait_keys(url)
+
+    def get(u):
+        return client.get("/api/plex/person-image", params={"u": u})
+
+    # Only a headshot-shaped url on the CDN host: no query variants of one file, no spellings an HTTP
+    # client folds onto it, no other host.
+    for bad in (
+        url + "?n=1",
+        url + "#x",
+        CDN + "x/../face.jpg",
+        CDN + "./face.jpg",
+        plex_people.PERSON_IMG_HOST + "people//face.jpg",
+        CDN + ".face.jpg",
+        "https://example.com/people/a.jpg",
+    ):
+        assert get(bad).status_code == 400, bad
+        assert plex_people.person_thumb_url(bad) is None, bad  # never stored either
+
+    # No Plex: the original from the CDN, kept under its own key (the job resizes it later).
+    def not_configured(d):
+        raise plex_people.PlexNotConfigured()
+
+    class _Cdn:
+        def __init__(self, *a, **k):
+            pass
+
+        def __enter__(self):
+            return self
+
+        def __exit__(self, *a):
+            return False
+
+        def get(self, u):
+            return httpx.Response(
+                200,
+                content=b"original",
+                headers={"content-type": "image/jpeg"},
+                request=httpx.Request("GET", u),
+            )
+
+    monkeypatch.setattr(playback, "PlexClient", not_configured)
+    monkeypatch.setattr(plex_people.httpx, "Client", _Cdn)
+    resp = get(url)
+    assert (resp.status_code, resp.content) == (200, b"original")
+    assert imgcache.has(original) and not imgcache.has(small)
+    monkeypatch.setattr(plex_people.httpx, "Client", None)  # the CDN is not asked again
+    assert get(url).content == b"original"  # the kept original answers
+
+    # With Plex: resized, and it replaces the original.
+    monkeypatch.setattr(playback, "PlexClient", lambda d: _Plex())
+    imgcache.drop(original)
+    resp = get(url)
+    assert (resp.status_code, resp.content) == (200, b"small")
+    assert imgcache.has(small)
+    assert get(url).content == b"small"  # the cache answers now
+
+    monkeypatch.setattr(playback, "PlexClient", lambda d: _Plex(down=True))
+    assert get(CDN + "other.jpg").status_code == 502
+
+
+def test_the_people_job_runs_its_halves_without_a_tmdb_key(db, cache_dir, plex_on, monkeypatch):
+    _faces(db, 1)
+    monkeypatch.setattr(plex_tmdb.sysconfig, "get_str", lambda d, k: "")
+    assert plex_tmdb.run_people_enrich(db) == {
+        "bios": {"skipped": "tmdb_api_key not set"},
+        "portraits": {"cached": 1},
+    }
+
+
+def test_a_phase_count_is_a_change_worth_an_audit_row():
+    assert scheduler._run_changed({"bios": {"enriched": 3}, "portraits": {"cached": 0}})
+    assert scheduler._run_changed({"recent": {"videos_added": 2}, "deep": {}})
+    assert not scheduler._run_changed({"bios": {"skipped": "x"}, "portraits": {"cached": 0}})
+
+
+def test_the_person_page_says_a_bio_is_on_its_way(db, monkeypatch, override_dep):
+    from fastapi.testclient import TestClient
+
+    import app.state as state
+    from app.auth import current_user
+    from app.db import get_db
+    from app.main import app
+    from app.routes.plex import people
+
+    db.add_all(
+        [
+            PlexPerson(name="Pending", tmdb_person_id=1),
+            PlexPerson(name="Known", tmdb_person_id=2, tmdb_enriched_at=DONE, biography="Bio."),
+            PlexPerson(name="Nobody"),
+        ]
+    )
+    user = User(email="enriching@example.com")
+    db.add(user)
+    db.commit()
+    monkeypatch.setattr(state, "_configured_cache", True)
+    override_dep(get_db, db.info["request"])
+    override_dep(current_user, lambda: user)
+    monkeypatch.setattr(people, "_enrich_person_bg", lambda pid: None)
+    key = {"value": "key"}
+    monkeypatch.setattr(people.sysconfig, "get_str", lambda d, k: key["value"])
+
+    def enriching(name):
+        resp = TestClient(app).get(f"/api/plex/person/{name}")
+        assert resp.status_code == 200, resp.text
+        return resp.json()["enriching"]
+
+    assert enriching("Pending") is True
+    assert enriching("Known") is False
+    assert enriching("Nobody") is False
+    key["value"] = ""  # no TMDB key: nothing will ever arrive, so the page must not wait
+    assert enriching("Pending") is False
+
+
+def test_known_for_is_the_most_voted_roles_not_guest_visits():
+    payload = {
+        "combined_credits": {
+            "cast": [
+                # Popular this week, but a visit as himself: not what he is known for.
+                {
+                    "id": 1,
+                    "media_type": "tv",
+                    "name": "Late Show",
+                    "character": "Himself - Guest",
+                    "popularity": 900,
+                    "vote_count": 50,
+                },
+                {
+                    "id": 2,
+                    "media_type": "tv",
+                    "name": "Talk Hour",
+                    "character": "",
+                    "genre_ids": [10767],
+                    "popularity": 800,
+                    "vote_count": 400,
+                },
+                {
+                    "id": 3,
+                    "media_type": "movie",
+                    "title": "Small Film",
+                    "character": "Bob",
+                    "popularity": 90,
+                    "vote_count": 300,
+                },
+                {
+                    "id": 4,
+                    "media_type": "movie",
+                    "title": "Big Film",
+                    "character": "Hero",
+                    "popularity": 10,
+                    "vote_count": 9000,
+                },
+            ],
+            "crew": [
+                {
+                    "id": 5,
+                    "media_type": "movie",
+                    "title": "His Own Film",
+                    "job": "Director",
+                    "vote_count": 1000,
+                },
+                {
+                    "id": 6,
+                    "media_type": "movie",
+                    "title": "Thanked In",
+                    "job": "Thanks",
+                    "vote_count": 99999,
+                },
+            ],
+        }
+    }
+    kf = plex_tmdb.parse_person(payload)["known_for"]
+    assert [k["title"] for k in kf] == ["Big Film", "His Own Film", "Small Film"]
+
+
+def test_the_page_shows_at_most_fifteen_known_for_titles(db):
+    from app.routes.plex import people
+
+    lib = PlexLibrary(plex_key="1", title="Movies", kind="movie", enabled=True)
+    db.add(lib)
+    db.flush()
+    for i in range(1, 21):  # TMDB ids start at 1
+        db.add(
+            PlexItem(
+                rating_key=f"k{i}", library_id=lib.id, kind="movie", title=f"T{i}", guid=f"tmdb:{i}"
+            )
+        )
+    db.commit()
+    pool = [{"tmdb_id": i, "media_type": "movie", "title": f"T{i}"} for i in range(1, 21)]
+    cards = people._resolve_known_for(db, pool, 0, [lib.id], [], "en")
+    assert [c["title"] for c in cards] == [f"T{i}" for i in range(1, 16)]

backend/tests/test_plex_person.py

@@ -133,6 +133,7 @@ def test_person_detail_unknown_name_is_empty(db, monkeypatch, override_dep):
         "place_of_birth": None,
         "known_for_department": None,
         "also_known_as": [],
+        "enriching": False,
         "known_for": [],
         "movies": [],
         "shows": [],

backend/tests/test_plex_person_bio.py

@@ -191,11 +191,12 @@ def test_person_detail_schedules_enrich_off_request_path(db, monkeypatch, overri
 
     scheduled: list[int] = []
     monkeypatch.setattr(people, "_enrich_person_bg", lambda pid: scheduled.append(pid))
+    monkeypatch.setattr(people.sysconfig, "get_str", lambda d, k: "key")
     people._enrich_inflight.clear()  # ensure the per-person cooldown guard doesn't suppress this open
 
     resp = _get(db, user, monkeypatch, override_dep, "/api/plex/person/Lazy P")
     assert resp.status_code == 200, resp.text
-    assert resp.json()["biography"] is None  # not enriched yet — the bio lands by the next open
+    assert resp.json()["biography"] is None  # not enriched yet — the page asks again (`enriching`)
     assert len(scheduled) == 1  # the enrich was scheduled off the request path
 
 
@@ -332,3 +333,74 @@ def test_person_detail_serves_bio_and_resolves_known_for(db, monkeypatch, overri
     assert j["also_known_as"] == ["Alt Name"]
     # Only the in-library known_for credit resolves to a card; the out-of-library one is dropped.
     assert [c["title"] for c in j["known_for"]] == ["Known Movie"]
+
+
+# --- E30 S4: the biography in the reader's language --------------------------------------------------
+# The same /person request appends `translations`; the Hungarian one is kept beside the instance-language
+# biography, and a Hungarian reader is served it, falling back to the English one when TMDB has none.
+
+
+def _translation(lang: str, bio: str) -> dict:
+    return {"iso_639_1": lang, "iso_3166_1": lang.upper(), "data": {"biography": bio}}
+
+
+def test_parse_person_keeps_the_hungarian_biography():
+    payload = {
+        **PAYLOAD,
+        "translations": {
+            "translations": [
+                _translation("de", "Ein Schauspieler."),
+                _translation("hu", "  Ünnepelt színész.  "),
+            ]
+        },
+    }
+    assert plex_tmdb.parse_person(payload)["biography_hu"] == "Ünnepelt színész."
+
+
+def test_parse_person_without_a_hungarian_biography():
+    assert plex_tmdb.parse_person(PAYLOAD)["biography_hu"] is None
+    blank = {**PAYLOAD, "translations": {"translations": [_translation("hu", "   ")]}}
+    assert plex_tmdb.parse_person(blank)["biography_hu"] is None
+
+
+def test_fetch_person_asks_for_the_translations():
+    client = plex_tmdb.TmdbClient.__new__(plex_tmdb.TmdbClient)
+    seen: list[dict] = []
+    client._get = lambda path, params=None: seen.append(params or {}) or {}  # type: ignore[method-assign]
+    client.fetch_person(500)
+    assert "translations" in seen[0]["append_to_response"].split(",")
+
+
+def test_person_detail_serves_the_biography_in_the_readers_language(db, monkeypatch, override_dep):
+    from datetime import datetime, timezone
+
+    done = datetime(2024, 1, 1, tzinfo=timezone.utc)
+    db.add(PlexLibrary(plex_key="7", title="Movies", kind="movie", enabled=True))
+    db.add_all(
+        [
+            PlexPerson(
+                name="Both P",
+                tmdb_person_id=1,
+                tmdb_enriched_at=done,
+                biography="English bio.",
+                biography_hu="Magyar életrajz.",
+            ),
+            PlexPerson(
+                name="Only EN P", tmdb_person_id=2, tmdb_enriched_at=done, biography="Only English."
+            ),
+        ]
+    )
+    user = User(email="biolang@example.com")
+    db.add(user)
+    db.commit()
+
+    def bio(name: str, lang: str) -> str | None:
+        resp = _get(db, user, monkeypatch, override_dep, f"/api/plex/person/{name}?lang={lang}")
+        assert resp.status_code == 200, resp.text
+        return resp.json()["biography"]
+
+    assert bio("Both P", "hu") == "Magyar életrajz."
+    assert bio("Both P", "en") == "English bio."
+    assert (
+        bio("Only EN P", "hu") == "Only English."
+    )  # TMDB has no Hungarian one: the English stands in

backend/tests/test_plex_tmdb.py

@@ -49,7 +49,7 @@ MOVIE_PAYLOAD = {
         ],
     },
     "production_companies": [{"name": "Paramount"}, {"name": "Alfran"}],
-    "production_countries": [{"name": "United States of America"}],
+    "production_countries": [{"iso_3166_1": "US", "name": "United States of America"}],
     "recommendations": {
         "results": [
             {
@@ -126,7 +126,8 @@ def test_parse_movie_pulls_all_fields():
         },
     ]  # the Gaffer is filtered; the two Coppola jobs survive (dedup is by name+job)
     assert d["studios"] == ["Paramount", "Alfran"]
-    assert d["production_countries"] == ["United States of America"]
+    # E30: the code beside the English name, so the client can name the country in the reader's language.
+    assert d["production_countries"] == [{"code": "US", "name": "United States of America"}]
     assert [r["tmdb_id"] for r in d["recommendations"]] == [240, 999]
     assert d["backdrops"] == ["/bd1.jpg", "/bd2.jpg"]
     # cast + crew names → tmdb person ids for the plex_people foundation
@@ -255,13 +256,13 @@ def test_serve_block_none_until_enriched_and_resolves_recs(db):
     db.add_all([sequel, fresh])
     db.commit()
 
-    assert tmdb.serve_block(db, fresh) is None  # not enriched yet
+    assert tmdb.serve_block(db, fresh, lang="en") is None  # not enriched yet
 
     tmdb.apply_tmdb_detail(fresh, tmdb.parse_tmdb(MOVIE_PAYLOAD, "movie"))
     fresh.tmdb_enriched_at = datetime.now(timezone.utc)
     db.commit()
 
-    block = tmdb.serve_block(db, fresh)
+    block = tmdb.serve_block(db, fresh, lang="en")
     assert block is not None
     assert block["budget"] == 6000000
     assert block["keywords"] == ["mafia", "crime family"]
@@ -409,6 +410,7 @@ def test_resolve_recs_matches_by_media_type_not_bare_id(db):
                 {"tmdb_id": 500, "title": "Movie 500", "media_type": "movie"},
                 {"tmdb_id": 900, "title": "Show 900", "media_type": "tv"},
             ],
+            lang="en",
         )
     }
     assert miss[500]["in_library"] is False and miss[500]["rating_key"] is None
@@ -423,7 +425,74 @@ def test_resolve_recs_matches_by_media_type_not_bare_id(db):
                 {"tmdb_id": 900, "media_type": "movie"},
                 {"tmdb_id": 500, "media_type": "tv"},
             ],
+            lang="en",
         )
     }
     assert hit[900]["in_library"] is True and hit[900]["rating_key"] == "m900"
     assert hit[500]["in_library"] is True and hit[500]["rating_key"] == "s500"
+
+
+# ---- E30: countries by ISO code -----------------------------------------------------------------
+
+
+class FakeCountries(FakeTmdb):
+    """TMDB's /configuration/countries, counting the requests."""
+
+    def __init__(self):
+        super().__init__()
+        self.calls = 0
+
+    def countries(self):
+        self.calls += 1
+        return [
+            {"iso_3166_1": "US", "english_name": "United States of America"},
+            {"iso_3166_1": "YU", "english_name": "Yugoslavia"},
+        ]
+
+
+def test_countries_stored_before_codes_get_them_from_tmdbs_list(db):
+    lib = _lib(db)
+    old = PlexItem(
+        rating_key="m1",
+        library_id=lib.id,
+        kind="movie",
+        title="Old",
+        production_countries=["Yugoslavia", "Atlantis"],
+        tmdb_enriched_at=datetime.now(timezone.utc),
+    )
+    show_lib = _lib(db, key="2", kind="show")
+    show = PlexShow(
+        rating_key="s1",
+        library_id=show_lib.id,
+        title="Show",
+        production_countries=["United States of America"],
+    )
+    new = PlexItem(
+        rating_key="m2",
+        library_id=lib.id,
+        kind="movie",
+        title="New",
+        production_countries=[{"code": "US", "name": "United States of America"}],
+    )
+    db.add_all([old, show, new])
+    db.commit()
+
+    # Served before the backfill: the bare name, with no code — never a crash on the old shape.
+    assert tmdb.serve_block(db, old, lang="hu")["production_countries"] == [
+        {"code": None, "name": "Yugoslavia"},
+        {"code": None, "name": "Atlantis"},
+    ]
+
+    fake = FakeCountries()
+    assert tmdb.backfill_country_codes(db, fake) == 2
+    db.refresh(old)
+    db.refresh(show)
+    assert old.production_countries == [
+        {"code": "YU", "name": "Yugoslavia"},
+        {"code": None, "name": "Atlantis"},  # not in TMDB's list → no code, the name kept
+    ]
+    assert show.production_countries == [{"code": "US", "name": "United States of America"}]
+
+    # Nothing left to code: no request at all.
+    assert tmdb.backfill_country_codes(db, fake) == 0
+    assert fake.calls == 1

backend/tests/test_scheduler.py

@@ -2,7 +2,10 @@
 through (at the top of _job): holding _activity_lock across the check-and-set means exactly one
 caller can hold a job's "running" claim at a time, and it's claimable again once released."""
 
+from sqlalchemy import select
+
 from app import scheduler
+from app.models import Notification
 
 _JOB = "unit_test_claim"  # not a real job id — exercises the primitive without touching live jobs
 
@@ -23,3 +26,63 @@ def test_claim_is_exclusive_until_released():
     # ...and now it can be claimed again.
     assert scheduler._claim_running(_JOB) is True
     _release()
+
+
+# ---- E30: the result as data -------------------------------------------------------------------
+
+
+def _snapshot_job(job_id):
+    return next(j for j in scheduler.scheduler_snapshot()["jobs"] if j["id"] == job_id)
+
+
+def test_a_run_keeps_its_result_as_data_for_the_readers_language(db, make_user):
+    """The dashboard and the manual-run notice showed `_summarize`'s English one-liner ("new=3,
+    failed=0", a Python repr for a nested phase). The result rides along as data, so the client names
+    it; the one-liner stays as the fallback and the audit text."""
+    admin = make_user("sched@example.com", role="admin")
+    token = scheduler._manual_actor.set(admin.id)
+    try:
+        scheduler._job("rss_poll", lambda _db: {"new": 3, "failed": 0, "fallback": 1})
+        scheduler._job("enrich", lambda _db: 5)  # enrich returns a bare count
+    finally:
+        scheduler._manual_actor.reset(token)
+
+    rss = _snapshot_job("rss_poll")
+    assert rss["result"] == {"new": 3, "failed": 0, "fallback": 1}
+    assert rss["last_result"] == "new=3, failed=0, fallback=1"
+    assert _snapshot_job("enrich")["result"] == {"enriched": 5}
+
+    notices = db.execute(
+        select(Notification).where(Notification.user_id == admin.id).order_by(Notification.id)
+    ).scalars()
+    assert [n.data["result"] for n in notices] == [
+        {"new": 3, "failed": 0, "fallback": 1},
+        {"enriched": 5},
+    ]
+
+
+def test_a_failed_run_drops_the_previous_result(db):
+    scheduler._job("rss_poll", lambda _db: {"new": 1})
+    scheduler._job("rss_poll", lambda _db: (_ for _ in ()).throw(RuntimeError("boom")))
+    rss = _snapshot_job("rss_poll")
+    assert rss["last_error"] == "boom"
+    assert rss["result"] is None
+
+
+def test_a_job_runs_audit_row_carries_its_result_as_data(db):
+    """E30 review: the audit log names a run's result in the reader's language, as the inbox does —
+    from data, not from the English one-liner (a nested phase there was a Python dict repr)."""
+    from app.models import AuditLog, User
+
+    admin = User(email="auditrun@example.com")
+    db.add(admin)
+    db.commit()
+    scheduler._audit_run(db, None, "people_enrich", "ok", "x", {"bios": {"enriched": 2}})
+    scheduler._audit_run(db, admin.id, "rss_poll", "skipped", "sync paused", scheduler._PAUSED)
+    scheduler._audit_run(db, admin.id, "rss_poll", "error", "boom", None)
+    rows = db.execute(select(AuditLog).order_by(AuditLog.id)).scalars().all()
+    assert [r.after for r in rows] == [
+        {"status": "ok", "summary": "x", "result": {"bios": {"enriched": 2}}},
+        {"status": "skipped", "summary": "sync paused", "result": {"skipped": "sync paused"}},
+        {"status": "error", "summary": "boom"},
+    ]

docs/DESIGN.md

@@ -38,6 +38,11 @@ runs this check before it is called done (E28 S3g):
    which the measure cannot trace to a component) and the playlist table's own rows.
 4. **Seen.** A screenshot of every changed state, thin edges at 1:1; the tablet widths (1024 × 768, a
    narrow split screen) when the layout can reflow. Phones are the E29 epic's, not this check's.
+5. **Judged as a whole** (E30 S6). For each screenshot, one written line on its composition: where the empty
+   space is, what hugs one side, what the eye lands on first. Then the screen at 200% browser zoom and at
+   the largest text size. Both are held to [Composition and the reader](#composition-and-the-reader--decided-e30-s6).
+   A rule that holds is not the same as a screen that works: the person page passed every rule above with
+   half its panel empty.
 
 ## The design lab
 
@@ -435,6 +440,36 @@ pick a density step; it never changes the anatomy or loses an action. [Nielsen #
 - **Reading measure.** Prose (a synopsis, a biography, a channel's description) is capped at ~65
   characters a line (the `measure` utility) wherever its container can be wider. [WCAG 1.4.8]
 
+## Composition and the reader — _Decided_ (E30 S6)
+
+The rules above say how each piece looks; these say whether the screen works as a whole, for the one
+reader it is built for. Found when the person page passed every rule with its biography in the left half
+of a full-width panel and nothing on the right.
+
+- **The space is used.** A narrow element in a wide container (prose at `measure`, a form, a short list)
+  comes with a decision about the rest of the width: a second column with related content (the person
+  page: facts and bio left, "Known for" right), a container sized to its content, or a layout that stacks.
+  A band of nothing wider than about a third of a panel, beside content that stops short, is a finding.
+  [Material layout, Gestalt proximity]
+- **One focal point, then an order.** A screen has one thing the eye lands on first (the page heading, the
+  hero, the player), then the sections, then the metadata. A heading level keeps one look across screens;
+  a second focal point competing with the first is a finding. [Nielsen #8, HIG hierarchy]
+- **Worst real data, not the demo row.** A screen is judged with the longest title, the Hungarian label,
+  zero items, the largest list, a missing picture and a missing field. None of them clips, overlaps or
+  leaves a hole where a value was. [Nielsen #9, WCAG 1.4.10]
+- **Where am I.** The browser tab names the place and the object in it ("Nicolas Cage · Plex · Siftlode"),
+  the rail marks the place, and Back returns to the same view at the same scroll position with focus
+  where it was. [Nielsen #1, WCAG 2.4.2]
+- **A click answers at once.** A control shows its pressed or changed state within ~100ms (an optimistic
+  update, a spinner in the control); what a screen opens with is the app's own data — an outside service
+  (TMDB, YouTube) is fetched ahead of time by a job, not on the click, so a page never waits on it.
+  Late content keeps its place (B8). [Nielsen #1, RAIL]
+- **Zoom and text size are first-class.** The owner reads with the browser zoomed and a large text size.
+  Every screen holds at 200% browser zoom on a desktop window and at the largest Settings text size at
+  1024 wide: nothing clipped or overlapping, no sideways page scroll, every control reachable and at
+  least its rung, text wrapping rather than cut. Measured, not assumed, on every UI change. [WCAG 1.4.4,
+  1.4.10, 1.4.12]
+
 ## Interaction rules — _Decided_
 
 - **Keyboard:** everything works by keyboard, in visual order, with no traps. A shortcut is a row in
@@ -531,7 +566,7 @@ pick a density step; it never changes the anatomy or loses an action. [Nielsen #
 - **Messages.** A toast or error of one sentence has no full stop and no "✓": "Couldn't sync
   subscriptions" / "Nem sikerült szinkronizálni". Two sentences keep their stops. Help text is prose.
 - **Quotes** around a name are curly: “abc” in English, „abc” in Hungarian.
-- **Dates**, in the UI language, only from `lib/format.ts` (lint: `local/date-format`): recency in a list
+- **Dates**, in the UI language, only from `lib/format.ts` (lint: `local/locale-format`): recency in a list
   is relative ("3d ago" / "3 napja") through `ui/RelativeTime`, which carries the exact minute on hover;
   a date is "Sep 27, 2026" / "2026. szept. 27."; a moment "Sep 27, 2026, 08:30 AM" /
   "2026. szept. 27. 08:30"; seconds only in the server log, the audit and the recorder.
@@ -540,6 +575,17 @@ pick a density step; it never changes the anatomy or loses an action. [Nielsen #
   label holding one is written in that same form ("Under 90 min"). Never a bare letter ("90m", "24h",
   "7d"; test-held). In a sentence, and in a list of time spans named in words ("24 hours", "1 week"), the
   unit is a word. A clock-style length on a picture stays "2:34:11".
+- **Numbers** in the UI language, from `lib/format.ts` (same lint): the decimal mark and grouping are the
+  language's ("8.3" / "8,3", "1,234" / "1 234"); a big count is compact ("1.2K" / "1,2 E"); a size keeps
+  its symbol ("5.0 GB" / "5,0 GB"), as do a stream's (Mbps) and "%" / "px". Never `toFixed` on screen.
+- **Order.** An A→Z list is in the UI language's alphabet ("Ö" after "O", "Cs" after "Cu" in Hungarian),
+  by the name the reader SEES: `compareText` (`lib/collate.ts`) on the client, the ICU collation of
+  `app/collation.py` on the server, so both sort alike.
+- **Hungarian words, not English ones** (E30 D3). Kept as Hungarian users say them: Feed, Shorts, Admin,
+  Token, Port, and technical tokens (log levels, ffmpeg presets, remux). Everything else is Hungarian:
+  közvetítés (stream), Prioritás, Feladat (job), Eseménynapló (audit), Demó, Automatikus, Infó,
+  Felület / Szerver (frontend / backend), videók behúzása (backfill), átkódolás (transcode), e-mail.
+  A longer Hungarian word gets its room — a column is sized to it, a pill truncates — never clipped.
 - A label says what happens ("Delete playlist"), not "OK"; a destructive confirm names the object.
 
 ## Anti-patterns
@@ -550,6 +596,9 @@ pick a density step; it never changes the anatomy or loses an action. [Nielsen #
 - A click handler on text that swallows the user's text selection.
 - A colour literal, a px font size, a px-frozen box.
 - An empty state shown for an error.
+- Half a panel left empty beside content that stops short.
+- A page that waits on an outside service when the user opens it.
+- A screen checked only at 100% zoom and the default text size.
 
 ## Decision log
 
@@ -624,6 +673,9 @@ pick a density step; it never changes the anatomy or loses an action. [Nielsen #
 | 2026-09-27 | C4 as built                                      | `initialFocus` required on every `Modal`; the commit row in `ModalFooter`, portalled under the body from any depth; the fades driven by the body's scroll timeline; `interactive-widget=resizes-content`                                                                                                               | An optional prop defaulting to the ✕; a `footer` prop (the issue composer's buttons live three components down); always-on fades                                                                       | A default is how 21 dialogs came to open on the ✕; lifting the composer's state to reach a prop is the larger change; a resting fade dimmed the first line                                    |
 | 2026-09-27 | C3 + C5 as built                                 | A tap toggles the bar through `pointerType` from `pointerdown`; a double-tap takes back its first tap's toggle; the card's pair is the video card's `MediaResumeButtons` (Continue / Restart), a sibling over the picture; the YT description is an ⓘ click popover                                                    | A delayed single tap (wait out the double-tap window); new "Resume / From the start" words for Plex; the pair inside the picture's button                                                              | A delayed tap feels dead; one media card says one pair of words; a button inside a button is invalid and the hover row already sits beside the picture                                        |
 | 2026-09-27 | C2 as built                                      | The side panel's drawer is `ui/Modal` `drawer-start`; drawer = a coarse pointer or below 768; the pin offered in its header ≥ 1024                                                                                                                                                                                     | A drawer of its own inside `SidePanel`                                                                                                                                                                 | Esc, Back, the scrim, the trap and the scroll lock are the dialog's; a second implementation is how two shells drift                                                                          |
+| 2026-09-30 | Composition and the reader (E30 S6)              | A chapter and a Conformance step: the space is used, one focal point, worst real data, where am I, a click answers at once, zoom and text size first-class; the person page as two columns (facts and bio left, "Known for" right)                                                                                     | Rules for pieces only; the bio in a full-width panel; a narrower panel                                                                                                                                 | The person page passed every piece rule with half its panel empty; the owner reads zoomed in, so zoom is a requirement, not a nicety                                                          |
+| 2026-09-30 | Hungarian words (E30 S5)                         | The D3 list: Feed, Shorts, Admin, Token, Port stay; stream, Prio, Job, Audit, Demo, Auto, Info, Frontend/Backend, Backfill, transcode get the Hungarian word; one name per thing (kérelem, behúzás, one "Test connection")                                                                                             | Keep every loanword; translate Feed/Shorts too                                                                                                                                                         | The owner chose the list (D3); the final sweep found the same feature under two names in three places                                                                                         |
+| 2026-09-29 | Numbers and order in the UI language (E30 S3)    | Every number through `lib/format.ts` in the UI language (decimal mark, grouping, compact, units); A→Z by the shown name in the UI language's alphabet, client and server alike; the language comes off `useTranslation`, never the singleton                                                                           | `toFixed`, hand-built "1.2K", `localeCompare` in the browser's locale, byte-order server sorts                                                                                                         | A Hungarian reader saw "8.3", "1.2K", "Életrajzi" after "Z"; the singleton read also left values in the old language after a switch (React Compiler)                                          |
 | 2026-09-27 | Narrow rows by container                         | The download row, the playlist table and the Channels tag row stack by a container query; a fact line never wraps                                                                                                                                                                                                      | Breakpoints on the window                                                                                                                                                                              | The iPad zoomed in, split screen and a column beside a rail are narrow while the window is not; the zoomed download row broke "18.9 / MB" apart                                               |
 | 2026-09-27 | Phones deferred                                  | A phone-only layout (the hamburger nav, a folded feed band) waits for its own epic; E28 stays desktop + tablet                                                                                                                                                                                                         | Fix the phone views inside E28                                                                                                                                                                         | Principle 2; the first phone attempts made the feed worse, and the epic's review grows with every sprint                                                                                      |
 | 2026-09-27 | Conformance check (S3g)                          | A four-step check before a UI change is done: primitive at a named rung, the chapter re-read, the rendered page measured by kind and look, every state seen                                                                                                                                                            | A reviewer's eye per sprint                                                                                                                                                                            | The S1 probe found 69 button looks; after S3 every control kind is drawn by its primitive, and the check keeps a new look from arriving unnoticed                                             |

frontend/eslint.config.js

@@ -82,33 +82,66 @@ const focusSafeDisabled = {
     };
   },
 };
-// E28 S3g (docs/DESIGN.md "Copy"): the app shows a date in three forms plus the relative one, all
-// built in lib/format.ts in the UI language. A bare `toLocaleString()` formats in the BROWSER's locale
-// and as numbers with seconds; seven call sites had drifted into five shapes. Outside lib/format.ts
-// a `toLocale*String` call or an `Intl.DateTimeFormat` / `Intl.RelativeTimeFormat` is refused (a
-// number goes through formatNumber, which the same rule covers).
-const dateFormat = {
+// E28 S3g + E30 S3 (docs/DESIGN.md "Copy"): a date, a number and an alphabetical order are all in the
+// UI language — dates and numbers built in lib/format.ts, text compared in lib/collate.ts. A bare
+// `toLocaleString()` formats in the BROWSER's locale (seven date sites had drifted into five shapes), a
+// bare `toFixed` writes the English decimal point, a bare `localeCompare` sorts in the browser's
+// alphabet. So outside those files a `toLocale*String` call or an Intl date/number formatter is refused,
+// an `Intl.Collator` outside collate.ts, and a `localeCompare` anywhere.
+//
+// And in a component, the language itself must come off `useTranslation()`, never the i18n singleton
+// (`import i18n from "../i18n"`): the React Compiler memoizes on what it can see, and a singleton read
+// is invisible to it — a card kept "2 hr 4 min" and a Plex query its English after a switch to
+// Hungarian. The singleton is resolved by SCOPE, so `const { i18n } = useTranslation()` passes.
+const localeFormat = {
   meta: {
     type: "problem",
     messages: {
-      date: "Format dates and numbers through lib/format.ts (formatDate, formatDateTime, formatDateTimeSec, relativeTime, formatNumber), in the UI language.",
+      date: "Format dates and numbers through lib/format.ts (formatDate, formatDateTime, formatNumber, formatDecimal, …), in the UI language.",
+      order:
+        "Compare text with compareText (lib/collate.ts), in the UI language — a bare localeCompare sorts in the browser's.",
+      singleton:
+        "Take the language from useTranslation() (`const { i18n } = useTranslation()`), not the i18n singleton — the React Compiler cannot see a singleton read, so the value stays in the old language after a switch.",
     },
   },
   create(context) {
     const path = context.filename.split("\\").join("/");
-    // lib/format.ts is where the forms live; a test computes its expectations; the Plex player's
-    // on-screen clock (lib/plexPlayerPrefs.ts) is a clock face with its own 12/24h switch, not a date.
-    if (/\/src\/lib\/(format|plexPlayerPrefs)\.ts$|\.test\.tsx?$/.test(path)) return {};
+    if (/\.test\.tsx?$/.test(path)) return {};
+    // lib/format.ts is where the forms live; the Plex player's on-screen clock (lib/plexPlayerPrefs.ts)
+    // is a clock face with its own 12/24h switch, not a date.
+    const formats = /\/src\/lib\/(format|plexPlayerPrefs)\.ts$/.test(path);
+    const collates = /\/src\/lib\/collate\.ts$/.test(path);
+    const component = /\/src\/components\//.test(path);
+    const importedFromI18n = (node) => {
+      for (let scope = context.sourceCode.getScope(node); scope; scope = scope.upper) {
+        const v = scope.set.get(node.name);
+        if (v)
+          return v.defs.some(
+            (d) => d.type === "ImportBinding" && /\/i18n$|^i18next$/.test(d.parent.source.value),
+          );
+      }
+      return false;
+    };
     return {
       "CallExpression > MemberExpression.callee[property.name=/^toLocale(Date|Time)?String$/]"(
         node,
       ) {
-        context.report({ node, messageId: "date" });
+        if (!formats) context.report({ node, messageId: "date" });
       },
-      "MemberExpression[object.name='Intl'][property.name=/^(DateTimeFormat|RelativeTimeFormat)$/]"(
+      "MemberExpression[object.name='Intl'][property.name=/^(DateTimeFormat|RelativeTimeFormat|NumberFormat)$/]"(
         node,
       ) {
-        context.report({ node, messageId: "date" });
+        if (!formats) context.report({ node, messageId: "date" });
+      },
+      "MemberExpression[object.name='Intl'][property.name='Collator']"(node) {
+        if (!collates) context.report({ node, messageId: "order" });
+      },
+      "CallExpression > MemberExpression.callee[property.name='localeCompare']"(node) {
+        context.report({ node, messageId: "order" });
+      },
+      "MemberExpression[property.name='language'][object.type='Identifier']"(node) {
+        if (component && importedFromI18n(node.object))
+          context.report({ node, messageId: "singleton" });
       },
     };
   },
@@ -382,7 +415,7 @@ const localRules = {
     "jsx-comment-text": jsxCommentText,
     "focus-safe-disabled": focusSafeDisabled,
     "button-primitive": buttonPrimitive,
-    "date-format": dateFormat,
+    "locale-format": localeFormat,
     "input-primitive": inputPrimitive,
     "surface-role": surfaceRole,
     "literal-a11y-text": literalA11yText,
@@ -395,6 +428,12 @@ const BOX_PX =
   "/(^|[\\s:])(min-|max-)?(w|h|size|left|right|top|bottom|inset|gap|p[xytrbl]?|m[xytrbl]?)-\\[[\\d.]+px\\]/";
 const BOX_PX_MESSAGE =
   "px-frozen box size doesn't scale with --font-scale: use the spacing scale (w-37.5, max-w-60), not w-[Npx].";
+// …and a grid's auto-fill column MINIMUM in px (`minmax(150px,1fr)`): the cards' text grows with the
+// slider while the column floor stays, so the cards get cramped at a large text size (E30 review). A
+// fixed track (`grid-cols-[1fr_240px]`) is left alone, as is VirtualGrid's measured `minCol` (a number).
+const GRID_MIN_PX = "/minmax\\([\\d.]+px,/";
+const GRID_MIN_PX_MESSAGE =
+  "px-frozen box size doesn't scale with --font-scale: give a grid column's minimum in rem (minmax(9.375rem,1fr)), not minmax(Npx,…).";
 // A stacking order outside the layer scale (DESIGN.md Tokens: `base < menu < chrome < … < tooltip` in
 // index.css). A numeric `z-10` equals a level today but doesn't follow it when the scale moves; name it.
 const Z_RAW = "/(^|[\\s:])-?z-([1-9]\\d*|\\[[^\\]]+\\])(?![\\w-])/";
@@ -477,7 +516,7 @@ export default tseslint.config(
       "local/jsx-comment-text": "error",
       "local/focus-safe-disabled": "error",
       "local/button-primitive": "error",
-      "local/date-format": "error",
+      "local/locale-format": "error",
       "local/input-primitive": "error",
       "local/surface-role": "error",
       "local/literal-a11y-text": "error",
@@ -554,6 +593,8 @@ export default tseslint.config(
         // 150px at the default size) — 32 of these were swept in the 2026-09 debt burn.
         { selector: `Literal[value=${BOX_PX}]`, message: BOX_PX_MESSAGE },
         { selector: `TemplateElement[value.raw=${BOX_PX}]`, message: BOX_PX_MESSAGE },
+        { selector: `Literal[value=${GRID_MIN_PX}]`, message: GRID_MIN_PX_MESSAGE },
+        { selector: `TemplateElement[value.raw=${GRID_MIN_PX}]`, message: GRID_MIN_PX_MESSAGE },
         { selector: `Literal[value=${Z_RAW}]`, message: Z_RAW_MESSAGE },
         { selector: `TemplateElement[value.raw=${Z_RAW}]`, message: Z_RAW_MESSAGE },
         { selector: `Literal[value=${HOVER_SWAP}]`, message: HOVER_SWAP_MESSAGE },

frontend/src/App.tsx

@@ -1,5 +1,6 @@
 import { lazy, Suspense, useEffect, useRef, useState } from "react";
 import { qk } from "./lib/queryKeys";
+import { saveLanguage } from "./lib/saveLanguage";
 import { useTranslation } from "react-i18next";
 import { useQuery, useQueryClient } from "@tanstack/react-query";
 import { api, setUnauthorizedHandler, type Me } from "./lib/api";
@@ -333,9 +334,9 @@ export default function App() {
     setLanguage(code);
     // Also from the signed-out login page, where the save 401s — `req` marks that as handled, so
     // the reporter stays quiet there.
-    api
-      .savePrefs({ language: code })
-      .catch((e: unknown) => notifyActionError(e, t("errors.writeFailed.prefs")));
+    saveLanguage(queryClient, code).catch((e: unknown) =>
+      notifyActionError(e, t("errors.writeFailed.prefs")),
+    );
   }
 
   // First-run: a fresh instance is in setup mode (all other routes are locked) → show the wizard.

frontend/src/components/About.tsx

@@ -8,10 +8,10 @@ import { formatDateTime } from "../lib/format";
 import { Button } from "./ui/Button";
 import Modal from "./ui/Modal";
 
-function fmtDate(d?: string | null): string {
+function fmtDate(d: string | null | undefined, lang: string): string {
   if (!d) return "—";
   const t = new Date(d);
-  return isNaN(t.getTime()) ? d : formatDateTime(d);
+  return isNaN(t.getTime()) ? d : formatDateTime(d, lang);
 }
 
 // About dialog: app + build + schema versions (frontend/backend/database), plus a
@@ -23,7 +23,8 @@ export default function About({
   onClose: () => void;
   onOpenReleaseNotes: () => void;
 }) {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const { data } = useQuery({
     queryKey: qk.version(),
     queryFn: api.version,
@@ -40,7 +41,7 @@ export default function About({
       data ? data.app_version + (data.git_sha !== "unknown" ? ` · ${data.git_sha}` : "") : "…",
     ],
     [t("about.database"), data?.db_revision ?? "…"],
-    [t("about.buildDate"), fmtDate(data?.build_date ?? FRONTEND_BUILD_DATE)],
+    [t("about.buildDate"), fmtDate(data?.build_date ?? FRONTEND_BUILD_DATE, lang)],
   ];
 
   return (

frontend/src/components/AccountPanel.tsx

@@ -55,7 +55,8 @@ export default function AccountPanel({
   user: AdminUserRow;
   onClose: () => void;
 }) {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const qc = useQueryClient();
   const [link, setLink] = useState<{ url: string; expires_at: string | null } | null>(null);
   const [copied, setCopied] = useState(false);
@@ -182,7 +183,7 @@ export default function AccountPanel({
               label={t("users.account.lastLogin")}
               value={
                 a.last_login_at
-                  ? formatDateTime(a.last_login_at)
+                  ? formatDateTime(a.last_login_at, lang)
                   : a.is_demo
                     ? t("users.account.lastLoginDemo")
                     : t("users.account.lastLoginNone")

frontend/src/components/AdminLogs.tsx

@@ -74,7 +74,8 @@ function toQuery(state: LogsUrlState, q: string): LogQuery {
 }
 
 export default function AdminLogs() {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const qc = useQueryClient();
   const [state, setState] = useState<LogsUrlState>(() =>
     logsParamsToState(new URLSearchParams(window.location.search)),
@@ -406,7 +407,7 @@ export default function AdminLogs() {
                     level={row.level}
                     event={row.event ?? "—"}
                     msg={row.msg}
-                    title={formatDateTimeSec(row.ts)}
+                    title={formatDateTimeSec(row.ts, lang)}
                     open={open === row.id}
                     onToggle={() => setOpen(open === row.id ? null : row.id)}
                   >
@@ -468,14 +469,15 @@ function RowDetail({
   onRequest: (id: string) => void;
   onJob: (id: number) => void;
 }) {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const pivotCls =
     "font-mono underline decoration-dotted underline-offset-2 hover:decoration-solid";
   return (
     <div className="flex flex-col gap-2">
       <dl className="grid grid-cols-[max-content_minmax(0,1fr)] gap-x-3 gap-y-0.5 font-sans text-xs">
         <dt>{t("adminLogs.fields.when")}</dt>
-        <dd className="tabular-nums">{formatDateTimeSec(row.ts)}</dd>
+        <dd className="tabular-nums">{formatDateTimeSec(row.ts, lang)}</dd>
         <dt>{t("adminLogs.fields.source")}</dt>
         <dd className="font-mono">
           {row.source} · {row.logger}

frontend/src/components/AdminUsers.dom.test.tsx

@@ -93,7 +93,7 @@ describe("the last sign-in column (E22 S1)", () => {
       </QueryClientProvider>,
     );
 
-    expect(await screen.findByText(relativeTime(at))).toBeTruthy();
+    expect(await screen.findByText(relativeTime(at, "en"))).toBeTruthy();
     expect(screen.getAllByText("—")).toHaveLength(2);
   });
 });

frontend/src/components/AdminUsers.tsx

@@ -103,7 +103,8 @@ export default function AdminUsers() {
 }
 
 function UsersRoles({ me }: { me: Me }) {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const qc = useQueryClient();
   const confirm = useConfirm();
   const q = useQuery({ queryKey: qk.adminUsers(), queryFn: api.adminUsers });
@@ -336,14 +337,14 @@ function UsersRoles({ me }: { me: Me }) {
                 <Tooltip
                   hint={
                     u.last_login_at
-                      ? t("users.roles.lastLogin", { time: formatDateTime(u.last_login_at) })
+                      ? t("users.roles.lastLogin", { time: formatDateTime(u.last_login_at, lang) })
                       : u.is_demo
                         ? t("users.roles.lastLoginDemo")
                         : t("users.roles.lastLoginNone")
                   }
                 >
                   <span className="relative hidden sm:inline-block w-20 shrink-0 text-right text-2xs text-muted tabular-nums">
-                    {u.last_login_at ? relativeTime(u.last_login_at) : "—"}
+                    {u.last_login_at ? relativeTime(u.last_login_at, lang) : "—"}
                   </span>
                 </Tooltip>
               </div>
@@ -440,7 +441,8 @@ function PendingAccessRowView({
   onActivate: () => void;
   onResend: () => void;
 }) {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   return (
     <div className={`${SURFACE.card} flex items-center gap-2 p-2.5`}>
       <div className="min-w-0 flex-1">
@@ -449,7 +451,7 @@ function PendingAccessRowView({
           {row.created_at && (
             <span>
               {t("users.pendingAccess.signedUp", {
-                time: formatDateTime(row.created_at),
+                time: formatDateTime(row.created_at, lang),
               })}
             </span>
           )}
@@ -536,6 +538,7 @@ function InviteLangPicker({
 
 function AdminInvites() {
   const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const qc = useQueryClient();
   const confirm = useConfirm();
   const me = useMe();
@@ -626,7 +629,8 @@ function AdminInvites() {
   // is also where the "you already wrote to them" warning belongs, next to the button that would
   // do it a second time, rather than only in a tooltip the admin may never hover.
   const onInvite = async (inv: Invite) => {
-    let lang: LangCode = LANGUAGES.some((l) => l.code === inv.lang)
+    // The language the INVITE is written in — not the admin's `lang`, which dates the sentence below.
+    let mailLang: LangCode = LANGUAGES.some((l) => l.code === inv.lang)
       ? (inv.lang as LangCode)
       : ((i18n.language.split("-")[0] === "hu" ? "hu" : "en") as LangCode);
     const ok = await confirm({
@@ -640,16 +644,16 @@ function AdminInvites() {
                 : "settings.invites.inviteConfirm",
               {
                 email: inv.email,
-                time: formatDateTime(inv.invited_at ?? new Date(0).toISOString()),
+                time: formatDateTime(inv.invited_at ?? new Date(0).toISOString(), lang),
               },
             )}
           </p>
-          <InviteLangPicker initial={lang} onPick={(v) => (lang = v)} />
+          <InviteLangPicker initial={mailLang} onPick={(v) => (mailLang = v)} />
         </>
       ),
       confirmLabel: t("settings.invites.inviteSend"),
     });
-    if (ok) invite.mutate({ inv, lang });
+    if (ok) invite.mutate({ inv, lang: mailLang });
   };
 
   const add = useMutation({
@@ -728,7 +732,11 @@ function AdminInvites() {
               <div key={i.id} className="flex items-center gap-2">
                 <span className="truncate flex-1">{i.email}</span>
                 <span className={i.status === "approved" ? "text-accent" : "text-danger"}>
-                  {i.status}
+                  {t(
+                    i.status === "approved"
+                      ? "settings.invites.status.approved"
+                      : "settings.invites.status.denied",
+                  )}
                 </span>
                 {/* Only an approved row with NOBODY behind it yet: this button means "the door is
                     open, come in", which is meaningless to someone already inside — and half the
@@ -740,7 +748,7 @@ function AdminInvites() {
                     hint={
                       i.invited_at
                         ? t("settings.invites.invitedAt", {
-                            time: formatDateTime(i.invited_at),
+                            time: formatDateTime(i.invited_at, lang),
                           })
                         : t("settings.invites.inviteHint")
                     }
@@ -927,7 +935,8 @@ function InviteRow({
   onDelete: () => void;
   busy: boolean;
 }) {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   return (
     <div className={`${SURFACE.card} flex items-center gap-2 p-2.5`}>
       <div className="min-w-0 flex-1">
@@ -935,7 +944,7 @@ function InviteRow({
         {inv.requested_at && (
           <div className="text-2xs text-muted">
             {t("settings.invites.requested", {
-              time: formatDateTime(inv.requested_at),
+              time: formatDateTime(inv.requested_at, lang),
             })}
           </div>
         )}

frontend/src/components/AuditLog.tsx

@@ -13,12 +13,14 @@ import DataTable from "./ui/DataTable";
 import { LoadingState, StateMessage } from "./ui/QueryState";
 import { auditColumns } from "./auditColumns";
 import { notifyActionError } from "../lib/actionErrors";
+import { compareText } from "../lib/collate";
 
 // Admin-only audit trail: an append-only who/what/when log of admin actions + scheduler run
 // summaries (never per-row). Read-only apart from Clear. Client-side sort/filter/paginate via
 // DataTable; the API returns the most recent window (capped) — the log stays small by design.
 export default function AuditLog() {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const qc = useQueryClient();
   const confirm = useConfirm();
   const q = useQuery({ queryKey: qk.adminAudit(), queryFn: () => api.adminAudit() });
@@ -26,10 +28,12 @@ export default function AuditLog() {
   const rows = useMemo(() => data?.items ?? [], [data]);
 
   const actionOptions = useMemo(() => {
-    const present = Array.from(new Set(rows.map((r) => r.action))).sort();
-    return present.map((a) => ({ value: a, label: t(`auditActions.${a}`, a) }));
-  }, [rows, t]);
-  const columns = useMemo(() => auditColumns(t, actionOptions), [t, actionOptions]);
+    // By what the reader sees — the named action, in their alphabet — not by the code.
+    return Array.from(new Set(rows.map((r) => r.action)))
+      .map((a) => ({ value: a, label: t(`auditActions.${a}`, a) }))
+      .sort((a, b) => compareText(a.label, b.label, lang));
+  }, [rows, t, lang]);
+  const columns = useMemo(() => auditColumns(t, lang, actionOptions), [t, lang, actionOptions]);
 
   const clear = useMutation({
     mutationFn: () => api.clearAudit(),

frontend/src/components/BootGate.dom.test.tsx

@@ -8,7 +8,7 @@
 //
 // Real NavigationProvider, real storage and i18n; only the two boot probes are stubbed. The probe
 // records EVERY render, so "never showed the wrong page, not even for one render" is what is asserted.
-import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
+import { describe, it, expect, vi, beforeEach, afterEach, type MockInstance } from "vitest";
 import { render, screen, cleanup, act, fireEvent, waitFor } from "@testing-library/react";
 import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
 import { useEffect } from "react";
@@ -47,6 +47,7 @@ function mount() {
   return qc;
 }
 const account = (over: Partial<Me> = {}) => ({ id: 5, preferences: {}, ...over }) as Me;
+let savePrefs: MockInstance<typeof api.savePrefs>;
 const retryButton = () => screen.findByRole("button", { name: i18n.t("common.retry") });
 
 beforeEach(async () => {
@@ -57,6 +58,7 @@ beforeEach(async () => {
   mounts = 0;
   await i18n.changeLanguage("en");
   vi.spyOn(api, "setupStatus").mockResolvedValue({ configured: true });
+  savePrefs = vi.spyOn(api, "savePrefs").mockResolvedValue({ ok: true } as never);
 });
 afterEach(() => {
   cleanup();
@@ -85,6 +87,26 @@ describe("BootGate", () => {
     expect(renders.map((r) => r.lang)).toEqual(renders.map(() => "hu"));
   });
 
+  it("an account with no language stored stores the one it is shown in, once", async () => {
+    await i18n.changeLanguage("hu"); // the browser's language, never saved
+    vi.spyOn(api, "me").mockResolvedValue(account());
+    const qc = mount();
+
+    await screen.findByTestId("app");
+    await waitFor(() => expect(savePrefs).toHaveBeenCalledWith({ language: "hu" }));
+    expect(savePrefs).toHaveBeenCalledTimes(1);
+    // The server now sorts in Hungarian, and so does what reads the stored language.
+    await waitFor(() => expect(qc.getQueryData<Me>(qk.me())?.preferences.language).toBe("hu"));
+  });
+
+  it("an account with its language stored stores nothing", async () => {
+    vi.spyOn(api, "me").mockResolvedValue(account({ preferences: { language: "hu" } }));
+    mount();
+
+    await screen.findByTestId("app");
+    expect(savePrefs).not.toHaveBeenCalled();
+  });
+
   it("mounts nothing of the app while the identity is still unknown", async () => {
     vi.spyOn(api, "me").mockReturnValue(new Promise<Me | null>(() => {}));
     mount();

frontend/src/components/BootGate.tsx

@@ -1,7 +1,9 @@
 import { useLayoutEffect, useRef, useState, type ReactNode } from "react";
-import { useQuery } from "@tanstack/react-query";
+import { useQuery, useQueryClient } from "@tanstack/react-query";
 import { useTranslation } from "react-i18next";
 import { api, getActiveAccount, setActiveAccount } from "../lib/api";
+import { log } from "../lib/log";
+import { saveLanguage } from "../lib/saveLanguage";
 import { qk } from "../lib/queryKeys";
 import i18n, { isSupported, setLanguage } from "../i18n";
 import { LoadingState, StateMessage } from "./ui/QueryState";
@@ -38,6 +40,7 @@ export function BootScreen() {
 
 export default function BootGate({ children }: { children: ReactNode }) {
   const { t } = useTranslation();
+  const qc = useQueryClient();
   // First-run install gate: a fresh instance reports configured=false and runs in setup mode, where
   // every other route is locked — so `me` is held back until the instance is known to be set up
   // (otherwise it would 503 against the setup-mode lock).
@@ -81,7 +84,10 @@ export default function BootGate({ children }: { children: ReactNode }) {
   //     not is corrected here — otherwise the tab would run as the default account on the server while
   //     reading and writing the gone account's local state.
   //   • Adopt the account's language, which follows the account across devices — the local copy only
-  //     knows what this browser last showed.
+  //     knows what this browser last showed. An account with none stored yet (the setup wizard's admin,
+  //     an account older than the stamp sign-up gives) stores the language it is shown in: the server
+  //     orders its lists and writes its mail in the stored one, else English, and a Hungarian screen
+  //     over English-ordered lists breaks "A→Z in the UI language's alphabet".
   const [readyFor, setReadyFor] = useState<number | null | undefined>(undefined);
   // `me` is read for the identity it produced, so it rides a ref: a background refetch of the same
   // account must not re-run the adoption over a language the user has just changed. That rule used
@@ -104,10 +110,21 @@ export default function BootGate({ children }: { children: ReactNode }) {
     const account = meRef.current;
     if (account && getActiveAccount() !== account.id) setActiveAccount(account.id);
     const lang = account?.preferences?.language;
-    if (typeof lang === "string" && isSupported(lang) && lang !== i18n.language) setLanguage(lang);
+    if (typeof lang === "string" && isSupported(lang)) {
+      // eslint-disable-next-line local/locale-format -- a one-shot read in an effect, compared before adopting the account's language; nothing renders it, so there is no memoized value to go stale.
+      if (lang !== i18n.language) setLanguage(lang);
+    } else if (account) {
+      // eslint-disable-next-line local/locale-format -- a one-shot read of the language the app is about to be shown in, stored once; nothing renders it.
+      const shown = i18n.language;
+      saveLanguage(qc, shown).catch((e: unknown) =>
+        log.warn("boot.language_store_failed", "the shown language could not be stored", {
+          error: String(e),
+        }),
+      );
+    }
     // eslint-disable-next-line react-hooks/set-state-in-effect -- the adoption latch. It cannot be derived: the whole point is that the tree mounts only AFTER the pin and the language have been applied, and both are writes to things outside React (sessionStorage, i18n). A layout effect so the frame that first shows the app already has them.
     setReadyFor(identity);
-  }, [identity, readyFor]);
+  }, [identity, readyFor, qc]);
 
   // No answer at all (a network or 5xx failure on the very first setup or account probe — past the
   // one retry `req` already makes): say so, with a retry. An unanswered setup probe is NOT "signed

frontend/src/components/ChannelAbout.tsx

@@ -3,35 +3,27 @@ import { ExternalLink } from "lucide-react";
 import type { ChannelDetail } from "../lib/api";
 import { linkify } from "../lib/linkify";
 import { Badge } from "./ui/Badge";
+import { languageName, regionName, vocab } from "../lib/vocab";
 
 // --- About-tab metadata helpers (shared by the channel page and the manager's About overlay) ---
-function displayName(code: string, lang: string, type: "region" | "language"): string {
-  try {
-    return (
-      new Intl.DisplayNames([lang], { type }).of(type === "region" ? code.toUpperCase() : code) ??
-      code
-    );
-  } catch {
-    return code;
-  }
-}
 // YouTube keywords are ONE space-separated string with multi-word tags quoted: gaming "let's play".
 function parseKeywords(s: string): string[] {
   return (s.match(/"[^"]+"|\S+/g) ?? []).map((k) => k.replace(/^"|"$/g, "")).filter(Boolean);
 }
-// topicCategories are Wikipedia URLs (…/wiki/Music) → a readable label, de-duplicated.
-function topicLabels(urls: string[]): string[] {
+// topicCategories are Wikipedia URLs (…/wiki/Music) → the page slug ("Pop_music"), de-duplicated. The
+// slug is the vocabulary word (E30): named in the reader's language, else shown with spaces.
+function topicSlugs(urls: string[]): string[] {
   const seen = new Set<string>();
   for (const url of urls) {
     const seg = url.split("/wiki/")[1] ?? url.split("/").pop() ?? url;
-    let label = seg;
+    let slug = seg;
     try {
-      label = decodeURIComponent(seg);
+      slug = decodeURIComponent(seg);
     } catch {
       /* keep raw */
     }
-    label = label.replace(/_/g, " ").trim();
-    if (label) seen.add(label);
+    slug = slug.trim();
+    if (slug) seen.add(slug);
   }
   return [...seen];
 }
@@ -43,7 +35,7 @@ function topicLabels(urls: string[]): string[] {
  */
 export default function ChannelAboutContent({ ch }: { ch: ChannelDetail }) {
   const { t, i18n } = useTranslation();
-  const topics = ch.topic_categories?.length ? topicLabels(ch.topic_categories) : [];
+  const topics = ch.topic_categories?.length ? topicSlugs(ch.topic_categories) : [];
   const keywords = ch.keywords ? parseKeywords(ch.keywords) : [];
   const hasAboutDetails =
     !!ch.country || !!ch.default_language || topics.length > 0 || keywords.length > 0;
@@ -86,14 +78,14 @@ export default function ChannelAboutContent({ ch }: { ch: ChannelDetail }) {
                     aria-hidden
                   />
                 )}
-                {displayName(ch.country, i18n.language, "region")}
+                {regionName(t, ch.country, i18n.language)}
               </span>
             </div>
           )}
           {ch.default_language && (
             <div className="flex gap-2">
               <span className="text-muted w-24 shrink-0">{t("channel.language")}</span>
-              <span>{displayName(ch.default_language, i18n.language, "language")}</span>
+              <span>{languageName(ch.default_language, i18n.language, ch.default_language)}</span>
             </div>
           )}
           {topics.length > 0 && (
@@ -102,7 +94,7 @@ export default function ChannelAboutContent({ ch }: { ch: ChannelDetail }) {
               <div className="flex flex-wrap gap-1.5">
                 {/* Future search epic: these topic chips become clickable filters. */}
                 {topics.map((tp) => (
-                  <Badge key={tp}>{tp}</Badge>
+                  <Badge key={tp}>{vocab(t, "topic", tp, tp.replace(/_/g, " "))}</Badge>
                 ))}
               </div>
             </div>

frontend/src/components/ChannelDiscovery.tsx

@@ -41,7 +41,8 @@ export default function ChannelDiscovery({
   onOpenWizard: () => void;
   onViewChannel: (id: string, name: string) => void;
 }) {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const qc = useQueryClient();
   const confirm = useConfirm();
   // The table/cards density is shared with the Subscriptions tab (ChannelsProvider). The sort is
@@ -148,7 +149,7 @@ export default function ChannelDiscovery({
       hideInCard: true,
       render: (c) => <AboutCell text={c.description} channelId={c.id} />,
     },
-    subsColumn<DiscoveredChannel>(t),
+    subsColumn<DiscoveredChannel>(t, lang),
     {
       key: "videos",
       header: t("channels.discovery.cols.totalVideos"),
@@ -157,7 +158,7 @@ export default function ChannelDiscovery({
       sortable: true,
       sortValue: (c) => c.video_count ?? -1,
       render: (c) => (
-        <span className="text-muted tabular-nums">{formatCountOrDash(c.video_count)}</span>
+        <span className="text-muted tabular-nums">{formatCountOrDash(c.video_count, lang)}</span>
       ),
     },
     {
@@ -186,7 +187,7 @@ export default function ChannelDiscovery({
   // computed for cards — DataTable sorts and slices internally, so doing it in table mode too would
   // copy+sort the whole list every render for a result nothing reads.
   const isCards = layout === "cards";
-  const sortedRows = isCards ? sortRows(rows, columns, sort) : rows;
+  const sortedRows = isCards ? sortRows(rows, columns, sort, lang) : rows;
   const {
     paged: pagedRows,
     pagerProps,

frontend/src/components/ChannelPage.tsx

@@ -1,6 +1,6 @@
 import { useCallback, useEffect, useRef, useState } from "react";
 import { useTranslation } from "react-i18next";
-import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+import { useMutation, useQueryClient } from "@tanstack/react-query";
 import { useLiveQuery } from "../lib/useLiveQuery";
 import { channelDetailPollMs, useBackfillFeedRefresh } from "../lib/channelDetailPoll";
 import { qk } from "../lib/queryKeys";
@@ -35,13 +35,14 @@ import { notifyYouTubeActionError } from "../lib/youtubeErrors";
 import { notifyActionError } from "../lib/actionErrors";
 import { api, DEFAULT_TAG_MODES, type FeedFilters, type Me, type ChannelDetail } from "../lib/api";
 import type { FeedView } from "../lib/feedView";
-import { channelYouTubeUrl, formatDate, formatViews } from "../lib/format";
+import { channelYouTubeUrl, formatDate, formatCompact } from "../lib/format";
 import { ChannelTagsControl } from "./ChannelTags";
 import { useChannelTagActions } from "../lib/useChannelTagActions";
 import { Button } from "./ui/Button";
 import { IconButton } from "./ui/IconButton";
 import { IconLink } from "./ui/LinkButton";
 import { PageHeading } from "./ui/Headings";
+import { useTags } from "../lib/useTags";
 
 // A dedicated channel page: an "About"-style header (banner, avatar, stats, subscribe) over the
 // channel's videos (the catalog filtered to this channel). For an un-subscribed channel it
@@ -69,6 +70,7 @@ export default function ChannelPage({
   onShowInFeed: () => void;
 }) {
   const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const { closeChannel } = useNavigationActions();
   const qc = useQueryClient();
   const confirm = useConfirm();
@@ -230,11 +232,7 @@ export default function ChannelPage({
   // invalidates the manager list so a tag added here shows there too.
   // Only fetch the tag catalog when the editor will actually render (subscribed, non-demo) — an
   // unsubscribed/demo channel page never shows the control, so the request would be thrown away.
-  const tagsQuery = useQuery({
-    queryKey: qk.tags(),
-    queryFn: api.tags,
-    enabled: !!ch?.subscribed && !me.is_demo,
-  });
+  const tagsQuery = useTags({ enabled: !!ch?.subscribed && !me.is_demo });
   const userTags = (tagsQuery.data ?? []).filter((tg) => !tg.system);
   const { toggleTag, createAndAttachTag } = useChannelTagActions({
     optimisticToggle: (id, tagId, attach) =>
@@ -284,7 +282,7 @@ export default function ChannelPage({
   const metaParts = [
     ch?.handle ? `@${ch.handle.replace(/^@/, "")}` : null,
     ch?.subscriber_count != null
-      ? t("channel.subscribers", { formatted: formatViews(ch.subscriber_count) })
+      ? t("channel.subscribers", { formatted: formatCompact(ch.subscriber_count, lang) })
       : null,
     // Show "stored / total" when we only hold a subset of a subscribed channel's uploads, so the
     // gap between the browsable videos and YouTube's raw count is honest rather than looking like
@@ -295,7 +293,7 @@ export default function ChannelPage({
         : t("channel.videoCount", { count: ch.video_count })
       : null,
     ch?.total_view_count != null
-      ? t("channel.totalViews", { formatted: formatViews(ch.total_view_count) })
+      ? t("channel.totalViews", { formatted: formatCompact(ch.total_view_count, lang) })
       : null,
     // Per-type breakdown (R14 moved this off the manager table's N/S/L column). Only meaningful
     // once we actually hold some of the channel's videos.

frontend/src/components/ChannelStatsPopover.dom.test.tsx

@@ -14,12 +14,16 @@ import { FloatingTree } from "@floating-ui/react";
 // (i18n/index.ts calls i18n.use(initReactI18next) at import time).
 vi.mock("react-i18next", async (importOriginal) => {
   const actual = await importOriginal<typeof import("react-i18next")>();
-  return { ...actual, useTranslation: () => ({ t: (key: string) => key }) };
+  return {
+    ...actual,
+    useTranslation: () => ({ i18n: { language: "en" }, t: (key: string) => key }),
+  };
 });
 
 import ChannelStatsPopover from "./ChannelStatsPopover";
 import { type MyStatus } from "../lib/api";
 import { formatEta, formatNumber } from "../lib/format";
+import type { TFunction } from "i18next";
 
 beforeAll(() => {
   class Stub {
@@ -74,7 +78,7 @@ describe("ChannelStatsPopover", () => {
     expect(screen.getByText("channels.stats.recentSynced")).toBeTruthy();
     expect(screen.getByText("3/10")).toBeTruthy(); // recent-synced ratio
     expect(screen.getByText("1/4")).toBeTruthy(); // full-history ratio
-    expect(screen.getByText(formatNumber(1234))).toBeTruthy(); // my_videos, locale-agnostic
+    expect(screen.getByText(formatNumber(1234, "en"))).toBeTruthy(); // my_videos, locale-agnostic
   });
 
   it("shows the 'left' ETA row only while a backfill is pending, with the formatted ETA value", () => {
@@ -86,7 +90,9 @@ describe("ChannelStatsPopover", () => {
     // The value is the FORMATTED ETA (via formatEta), not raw seconds — asserting it guards the
     // formatEta wiring, which is untested anywhere else. Using the same formatEta keeps this
     // locale/impl-agnostic (expected === what the component renders).
-    expect(screen.getByText(formatEta(120))).toBeTruthy();
+    expect(
+      screen.getByText(formatEta(((k: string) => k) as unknown as TFunction, 120)),
+    ).toBeTruthy();
     expect(screen.queryByText("120")).toBeNull(); // never the raw seconds
   });
 

frontend/src/components/ChannelStatsPopover.tsx

@@ -22,7 +22,8 @@ import { SURFACE } from "./ui/surfaces";
 // with a leading icon. Kept in the manager's own toolbar (the header's SyncStatus is global; these
 // are channel-catalog figures).
 export default function ChannelStatsPopover({ status }: { status: MyStatus }) {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const [open, setOpen] = useState(false);
   const pop = useAnchoredPopover({
     open,
@@ -58,7 +59,7 @@ export default function ChannelStatsPopover({ status }: { status: MyStatus }) {
           {
             icon: Clock,
             label: t("channels.stats.left"),
-            value: formatEta(status.deep_eta_seconds),
+            value: formatEta(t, status.deep_eta_seconds),
             hint: t("channels.stats.leftHint", { count: status.deep_pending_count }),
           },
         ]
@@ -66,13 +67,13 @@ export default function ChannelStatsPopover({ status }: { status: MyStatus }) {
     {
       icon: Film,
       label: t("channels.stats.myVideos"),
-      value: formatNumber(status.my_videos),
+      value: formatNumber(status.my_videos, lang),
       hint: t("channels.stats.myVideosHint"),
     },
     {
       icon: Zap,
       label: t("channels.stats.quotaLeft"),
-      value: formatNumber(status.quota_remaining_today),
+      value: formatNumber(status.quota_remaining_today, lang),
       hint: t("channels.stats.quotaLeftHint"),
     },
   ];

frontend/src/components/Channels.tsx

@@ -54,6 +54,7 @@ import { useNavigationActions } from "./navigationContext";
 import { useFeedFilters, useFeedFiltersActions } from "./feedFiltersContext";
 import { useWizard } from "./wizardContext";
 import { useMe } from "../lib/useMe";
+import { useTags } from "../lib/useTags";
 
 export type ChannelsView = "subscribed" | "discovery" | "hidden" | "blocked";
 
@@ -106,7 +107,8 @@ export default function Channels() {
   const { openChannel: onViewChannel, setPage } = useNavigationActions();
   const feedFilters = useFeedFilters();
   const { setFilters: setFeedFilters } = useFeedFiltersActions();
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const qc = useQueryClient();
 
   // Clicking a tag chip filters the feed by that tag and jumps there. Internalised (was an App
@@ -118,7 +120,7 @@ export default function Channels() {
   };
 
   const channelsQuery = useQuery({ queryKey: qk.channels(), queryFn: api.channels });
-  const tagsQuery = useQuery({ queryKey: qk.tags(), queryFn: api.tags });
+  const tagsQuery = useTags();
   const statusQuery = useQuery({ queryKey: qk.myStatus(), queryFn: api.myStatus });
   const blockedQuery = useQuery({ queryKey: qk.blockedChannels(), queryFn: api.blockedChannels });
   const [tagManagerOpen, setTagManagerOpen] = useState(false);
@@ -169,7 +171,10 @@ export default function Channels() {
   const listRef = useRef<HTMLDivElement>(null);
   const pickPriority = (c: ManagedChannel, next: number) => {
     setPriority(c.id, next);
-    qc.setQueryData<ManagedChannel[]>(qk.channels(), (old) => old && placeByPriority(old, c.id));
+    qc.setQueryData<ManagedChannel[]>(
+      qk.channels(),
+      (old) => old && placeByPriority(old, c.id, me.preferences),
+    );
     setFollow((f) => ({ key: c.id, seq: (f?.seq ?? 0) + 1 }));
   };
 
@@ -363,6 +368,7 @@ export default function Channels() {
 
   const columns = buildChannelColumns({
     t,
+    lang: i18n.language,
     prioOptions,
     userTags,
     bumpPriority,
@@ -470,7 +476,7 @@ export default function Channels() {
   // Cards have no column headers, so apply the shared column filters (sync + any funnel set in table
   // mode) here via the exported predicate — the same filterRows DataTable runs internally — then sort.
   const sortedChannels = isCards
-    ? sortRows(filterRows(syncedChannels, columns, filters), columns, sort)
+    ? sortRows(filterRows(syncedChannels, columns, filters), columns, sort, lang)
     : syncedChannels;
   const {
     paged: pagedCards,

frontend/src/components/ConfigPanel.tsx

@@ -143,7 +143,7 @@ export default function ConfigPanel() {
       notifyActionError(e, t("config.plexTestFailed"));
     },
   });
-  // Bug reports' "Check the connection" (E16): the repository answers, takes issues, is private.
+  // Bug reports' "Test connection" (E16): the repository answers, takes issues, is private.
   const testIssues = useMutation({
     mutationFn: () => api.testIssues(),
     onSuccess: (r) =>

frontend/src/components/DebugRecorder.tsx

@@ -372,7 +372,8 @@ const chipTone = (s: DebugSession): string => {
 
 /** The last sessions, newest first — reopening one opens its composer, with what was written. */
 function SessionHistory() {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const q = useQuery({ queryKey: qk.debugSessions(), queryFn: api.debugSessions });
   const items = q.data?.items.filter((s) => s.ended_at) ?? [];
   if (q.isError && !q.data)
@@ -394,7 +395,7 @@ function SessionHistory() {
               key={s.id}
               className="flex flex-wrap items-center gap-x-3 gap-y-1 px-3 py-2 text-sm"
             >
-              <span className="tabular-nums">{formatDateTimeSec(s.started_at)}</span>
+              <span className="tabular-nums">{formatDateTimeSec(s.started_at, lang)}</span>
               <span className="min-w-0 flex-1 truncate text-muted">
                 {s.draft?.title || t(`settings.diagnostics.levels.${s.level}`)}
               </span>

frontend/src/components/DiagnosticsSettings.tsx

@@ -40,7 +40,8 @@ function useRemaining(until: string | null): { h: number; m: number } | null {
 // the server keeps it and for how long, and that it lapses; only its button raises the level.
 // Returning to Alap needs no consent and happens at once.
 export default function DiagnosticsSettings() {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const me = useMe();
   const qc = useQueryClient();
   const state = me.diagnostics;
@@ -173,8 +174,8 @@ export default function DiagnosticsSettings() {
                   level: levelName(current),
                   time:
                     remaining.h > 0
-                      ? `${formatUnit(remaining.h, "hour")} ${formatUnit(remaining.m, "minute")}`
-                      : formatUnit(remaining.m, "minute"),
+                      ? `${formatUnit(remaining.h, "hour", lang)} ${formatUnit(remaining.m, "minute", lang)}`
+                      : formatUnit(remaining.m, "minute", lang),
                 })}
               </span>
             </span>

frontend/src/components/DownloadCenter.confirm.dom.test.tsx

@@ -15,7 +15,10 @@ const mocks = vi.hoisted(() => ({
 
 vi.mock("react-i18next", async (importOriginal) => {
   const actual = await importOriginal<typeof import("react-i18next")>();
-  return { ...actual, useTranslation: () => ({ t: (key: string) => key }) };
+  return {
+    ...actual,
+    useTranslation: () => ({ i18n: { language: "en" }, t: (key: string) => key }),
+  };
 });
 vi.mock("./confirmContext", () => ({ useConfirm: () => mocks.confirm }));
 vi.mock("../lib/useLiveQuery", () => ({

frontend/src/components/DownloadCenter.menu.dom.test.tsx

@@ -18,7 +18,10 @@ const mocks = vi.hoisted(() => ({
 
 vi.mock("react-i18next", async (importOriginal) => {
   const actual = await importOriginal<typeof import("react-i18next")>();
-  return { ...actual, useTranslation: () => ({ t: (key: string) => key }) };
+  return {
+    ...actual,
+    useTranslation: () => ({ i18n: { language: "en" }, t: (key: string) => key }),
+  };
 });
 vi.mock("./confirmContext", () => ({ useConfirm: () => mocks.confirm }));
 vi.mock("../lib/useLiveQuery", () => ({

frontend/src/components/DownloadDialog.tsx

@@ -12,6 +12,7 @@ const ProfileEditor = lazy(() => import("./ProfileEditor"));
 import { notify } from "../lib/notifications";
 import { notifyActionError } from "../lib/actionErrors";
 import { navigateTo } from "../lib/nav";
+import { profileName } from "../lib/vocab";
 import FilterSelect from "./ui/FilterSelect";
 import { Input } from "./ui/Input";
 
@@ -75,7 +76,7 @@ export default function DownloadDialog({
         hideLabel
         selected={chosen == null ? [] : [String(chosen)]}
         onChange={([v]) => v && setProfileId(Number(v))}
-        options={profiles.map((p) => ({ value: String(p.id), label: p.name }))}
+        options={profiles.map((p) => ({ value: String(p.id), label: profileName(t, p) }))}
       />
       <Button variant="link" onClick={() => setManage(true)} className="text-xs mt-1 mb-4">
         {t("downloads.dialog.manage")}

frontend/src/components/ErrorBoundary.message.dom.test.tsx

@@ -0,0 +1,39 @@
+// @vitest-environment jsdom
+//
+// E30: a render crash's notice speaks the reader's language. It showed `error.message` — the JS
+// engine's English ("Cannot read properties of undefined (reading 'x')") — in the toast and the inbox,
+// where it outlives the reload. The technical text stays in the `ui.crash` log.
+import { afterEach, expect, it, vi } from "vitest";
+import { cleanup, render } from "@testing-library/react";
+
+const notify = vi.fn();
+vi.mock("../lib/notifications", () => ({ notify: (...args: unknown[]) => notify(...args) }));
+
+import i18n from "../i18n";
+import { clear, events } from "../lib/log";
+import ErrorBoundary from "./ErrorBoundary";
+
+afterEach(() => {
+  cleanup();
+  clear();
+  vi.restoreAllMocks();
+});
+
+it("a crash is reported in words the reader reads; the engine's text goes to the log", () => {
+  vi.spyOn(console, "error").mockImplementation(() => {}); // React reports the throw itself too
+  const Broken = () => {
+    throw new TypeError("Cannot read properties of undefined (reading 'x')");
+  };
+  render(
+    <ErrorBoundary>
+      <Broken />
+    </ErrorBoundary>,
+  );
+
+  expect(notify).toHaveBeenCalledWith(
+    expect.objectContaining({ level: "fatal", message: i18n.t("errors.boundary.notifMessage") }),
+  );
+  expect(JSON.stringify(events().filter((e) => e.event === "ui.crash"))).toContain(
+    "Cannot read properties of undefined",
+  );
+});

frontend/src/components/ErrorBoundary.tsx

@@ -32,7 +32,9 @@ export default class ErrorBoundary extends Component<Props, State> {
     notify({
       level: "fatal",
       title: i18n.t("errors.boundary.notifTitle"),
-      message: error.message || i18n.t("errors.boundary.notifMessage"),
+      // Never the raw `error.message`: a JS engine's English ("Cannot read properties of undefined…")
+      // is no message for the reader (E30) — the `ui.crash` log above carries it for diagnosis.
+      message: i18n.t("errors.boundary.notifMessage"),
       requiresInteraction: true,
     });
   }

frontend/src/components/Feed.tsx

@@ -136,7 +136,8 @@ export default function Feed({
   // that are constant within one channel (subscribers, priority) — they'd be meaningless.
   channelScoped?: boolean;
 }) {
-  const { t } = useTranslation();
+  const { t, i18n: ui } = useTranslation();
+  const lang = ui.language;
   // "Connect YouTube" onboarding lives in WizardProvider (the empty-state CTA when not connected).
   const { openWizard: onOpenWizard } = useWizard();
   // Same list the panel's badge counts — see lib/useActiveFilters.
@@ -439,6 +440,7 @@ export default function Feed({
       withOverrides(ytLoaded),
       ytSort.key as SortKey,
       ytSort.dir,
+      lang,
     );
     const ytPlayerQueue: Video[] = ytItems.filter((v) => v.status !== "hidden");
     const ytError =

frontend/src/components/Home.dom.test.tsx

@@ -9,6 +9,7 @@
 //     identical card straight back and the button looks dead.
 // i18n is key-passthrough; the api is mocked so queries resolve synchronously. The rails live inside
 // a Carousel (useHScroll → ResizeObserver), stubbed for jsdom.
+import { setLanguage } from "../i18n";
 import { StrictMode } from "react";
 import { describe, it, expect, afterEach, beforeAll, beforeEach, vi } from "vitest";
 import { act, render, screen, fireEvent, cleanup, waitFor, within } from "@testing-library/react";
@@ -30,12 +31,14 @@ beforeAll(() => {
 
 vi.mock("react-i18next", async (importOriginal) => {
   const actual = await importOriginal<typeof import("react-i18next")>();
+  // the real instance: these tests switch the language with setLanguage
+  const real = (await import("i18next")).default;
   return {
     ...actual,
     useTranslation: () => ({
       t: (key: string, opts?: Record<string, unknown>) =>
         opts?.time ? `${key}:${opts.time}` : key,
-      i18n: { language: "en" },
+      i18n: real,
     }),
   };
 });
@@ -461,7 +464,7 @@ describe("Home", () => {
     mount();
     await screen.findByText("Hero v1");
     fireEvent.click(screen.getByText("home.budget.short")); // the empty-state branch needs a band
-    await waitFor(() => expect(discover).toHaveBeenLastCalledWith("short", 0));
+    await waitFor(() => expect(discover).toHaveBeenLastCalledWith("short", 0, "en"));
 
     // A press that RESOLVES with nothing left: the honest empty state.
     discoverPick.mockResolvedValueOnce({ budget: "short", hero: null });
@@ -509,7 +512,7 @@ describe("Home", () => {
     // A never-resolving refetch: the point is what the page shows WHILE it waits.
     discover.mockReturnValue(new Promise(() => {}));
     fireEvent.click(screen.getByText("home.budget.short"));
-    await waitFor(() => expect(discover).toHaveBeenLastCalledWith("short", 0));
+    await waitFor(() => expect(discover).toHaveBeenLastCalledWith("short", 0, "en"));
     // Still the old answer — not a spinner that would take the chips away with it.
     expect(screen.getByText("Hero v1")).toBeTruthy();
   });
@@ -523,7 +526,7 @@ describe("Home", () => {
     await screen.findByText("Hero v1");
     fireEvent.click(screen.getByText("home.hero.reroll"));
     await waitFor(() =>
-      expect(discoverPick).toHaveBeenCalledWith("any", expect.any(Number), ["youtube:v1"], 1),
+      expect(discoverPick).toHaveBeenCalledWith("any", expect.any(Number), ["youtube:v1"], 1, "en"),
     );
     expect(await screen.findByText("Rerolled")).toBeTruthy();
   });
@@ -584,7 +587,7 @@ describe("Home", () => {
     mount();
 
     expect(await screen.findByText("Rerolled")).toBeTruthy();
-    expect(discover).toHaveBeenLastCalledWith("short", 0);
+    expect(discover).toHaveBeenLastCalledWith("short", 0, "en");
     // The very same question — seed, the cards already seen and the press count all came back, not
     // just the budget: the server answers each of them differently.
     await waitFor(() => expect(discoverPick.mock.lastCall).toEqual(asked));
@@ -613,7 +616,7 @@ describe("Home", () => {
     // …and on the press count the server reads as "which tier answers first": 2 leads with the
     // SURPRISE tier, which is what a command labelled "Meglepetés" promised. A plain next press (1)
     // led with the shelf, so anyone with one got "A polcodról" instead (owner's call, 2026-09-19).
-    expect(discoverPick).toHaveBeenCalledWith("any", expect.any(Number), [], 2);
+    expect(discoverPick).toHaveBeenCalledWith("any", expect.any(Number), [], 2, "en");
   });
 
   // The rotation carries on from the requested tier: the page's own button after a palette surprise
@@ -753,7 +756,13 @@ describe("Home", () => {
     await screen.findByText("Hero v1");
     fireEvent.click(screen.getByText("home.hero.reroll"));
     await waitFor(() =>
-      expect(discoverPick).toHaveBeenLastCalledWith("any", expect.any(Number), ["youtube:v1"], 1),
+      expect(discoverPick).toHaveBeenLastCalledWith(
+        "any",
+        expect.any(Number),
+        ["youtube:v1"],
+        1,
+        "en",
+      ),
     );
     await screen.findByText("Rerolled");
     fireEvent.click(screen.getByText("home.hero.reroll"));
@@ -767,6 +776,7 @@ describe("Home", () => {
         // reinstate the measured nine-card cycle) left the whole suite green.
         ["youtube:v1", "youtube:v9"],
         2,
+        "en",
       ),
     );
   });
@@ -796,7 +806,9 @@ describe("Home · keyboard", () => {
       ],
     });
     mount();
-    await screen.findByText("Comfort thing");
+    // The rail's keys are live once its effect registers it, which can land after the cards paint.
+    const first = await screen.findByText("Comfort thing");
+    await waitFor(() => expect(first.closest("[data-nav-list]")).not.toBeNull());
     const titles = ["Comfort thing", "Pinned channel", "Second thing", "Third thing"];
     const seen: (string | undefined)[] = [];
     for (let i = 0; i < titles.length; i++) {
@@ -870,3 +882,16 @@ describe("Home's hero text", () => {
     expect(text.querySelector("p.measure")).toBeNull();
   });
 });
+
+describe("Home · the reader's language (E30)", () => {
+  it("asks for the page in Hungarian, so a Plex card comes back with its Hungarian title", async () => {
+    setLanguage("hu");
+    try {
+      mount();
+      await waitFor(() => expect(discover).toHaveBeenCalled());
+      expect(discover.mock.calls[0]?.[2]).toBe("hu");
+    } finally {
+      setLanguage("en");
+    }
+  });
+});

frontend/src/components/Home.tsx

@@ -14,6 +14,7 @@ import {
   Star,
 } from "lucide-react";
 import { qk } from "../lib/queryKeys";
+import { plexLang } from "../i18n";
 import {
   api,
   DISCOVER_BUDGETS,
@@ -29,7 +30,13 @@ import {
 } from "../lib/api";
 import { notifyActionError } from "../lib/actionErrors";
 import { takeSurprise, useSurpriseRequest } from "../lib/homeIntent";
-import { formatDuration, formatRuntime, formatViews, relativeTime } from "../lib/format";
+import {
+  formatCompact,
+  formatDecimal,
+  formatDuration,
+  formatRuntime,
+  relativeTime,
+} from "../lib/format";
 import { toggleWatchState } from "../lib/plexWatch";
 import { useComfortPin, pinTargetForCard, shelfMoveTarget, type ShelfMove } from "./comfortPin";
 import { type ActionMenuItem } from "./ui/ActionMenu";
@@ -501,7 +508,8 @@ function Hero({
   onReroll: () => void;
   rerolling: boolean;
 }) {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   // The hero is a card like any other (the owner, 2026-09-27): the same hover row on its picture and
   // the same whole action list on its "…", right-click and long-press — it was a pin row alone.
   const { menu, items, panels, plexAdd } = useHomeCardMenu({
@@ -532,12 +540,12 @@ function Hero({
   const plex = card.plex;
   const video = card.video;
   const facts = plex
-    ? [plex.year, formatRuntime(card.duration_seconds)]
+    ? [plex.year, formatRuntime(card.duration_seconds, lang)]
     : video
       ? // The channel is the subtitle already.
         [
-          video.view_count != null && `${formatViews(video.view_count)} ${t("card.views")}`,
-          relativeTime(video.published_at),
+          video.view_count != null && `${formatCompact(video.view_count, lang)} ${t("card.views")}`,
+          relativeTime(video.published_at, lang),
         ]
       : [];
   const factLine = facts.filter(Boolean).join(" · ");
@@ -630,7 +638,7 @@ function Hero({
               <span className="inline-flex items-center gap-0.5">
                 {factLine && <span aria-hidden>·</span>}
                 <Star className="h-3 w-3 fill-current text-rating" aria-hidden />
-                {plex.rating.toFixed(1)}
+                {formatDecimal(plex.rating, lang)}
               </span>
             )}
           </p>
@@ -691,7 +699,7 @@ function readSavedQuestion(): SavedQuestion | null {
 }
 
 export default function Home() {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
   const qc = useQueryClient();
   const { setPage } = useNavigationActions();
   const { setJumpTo } = usePlexActions();
@@ -720,17 +728,19 @@ export default function Home() {
   }, [budget, seed, press, seen]);
   const [player, setPlayer] = useState<{ video: Video; startAt: number | null } | null>(null);
 
+  // A Plex card's title is in the reader's language (E30), so the answer is cached per language.
+  const lang = plexLang(i18n.language);
   const q = useQuery({
-    queryKey: qk.discover(budget),
-    queryFn: () => api.discover(budget, 0),
+    queryKey: qk.discover(budget, lang),
+    queryFn: () => api.discover(budget, 0, lang),
     // Keep the previous budget's answer on screen while the new one loads. Without this the page
     // falls back to `isPending` and replaces itself — chips included — with a spinner, so the
     // control you just clicked vanishes under your cursor. (Same reason the feed does it.)
     placeholderData: keepPreviousData,
   });
   const pickQ = useQuery({
-    queryKey: qk.discoverPick(budget, seed, seen, press),
-    queryFn: () => api.discoverPick(budget, seed, seen, press),
+    queryKey: qk.discoverPick(budget, lang, seed, seen, press),
+    queryFn: () => api.discoverPick(budget, seed, seen, press, lang),
     enabled: seed !== 0,
     staleTime: 0,
     // Hold the previous hero while the next one is in flight. Without this the reroll's new query key
@@ -931,7 +941,7 @@ export default function Home() {
   const moveInShelf = useCallback(
     (card: DiscoverCard, to: ShelfMove, rendered: DiscoverCard[]) => {
       if (shelfSavingRef.current) return;
-      const key = qk.discover(budget);
+      const key = qk.discover(budget, lang); // the query's own key: setQueryData matches exactly
       const cards = rendered;
       const from = cards.findIndex((c) => c.pin_id === card.pin_id);
       const target = shelfMoveTarget(from, to, cards.length);
@@ -965,7 +975,7 @@ export default function Home() {
           void qc.invalidateQueries({ queryKey: qk.discover() });
         });
     },
-    [budget, qc, t],
+    [budget, lang, qc, t],
   );
 
   const reroll = useCallback(

frontend/src/components/IssueComposer.tsx

@@ -114,6 +114,7 @@ function ComposerBody({
   total: number;
 }) {
   const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const qc = useQueryClient();
   const pageName = (page: string) => {
     const def = moduleDef(page as Page);
@@ -304,8 +305,8 @@ function ComposerBody({
     <div ref={root} className="flex flex-col gap-4">
       <p className="text-sm text-muted">
         {t("recorder.composer.meta", {
-          start: formatDateTimeSec(started.toISOString()),
-          minutes: formatUnit(minutes, "minute"),
+          start: formatDateTimeSec(started.toISOString(), lang),
+          minutes: formatUnit(minutes, "minute", lang),
           level: t(`settings.diagnostics.levels.${session.level}`),
         })}
       </p>
@@ -607,7 +608,8 @@ function Attachments({
   onReview: (source: Source) => void;
   reviewed: MutableRefObject<Source | null>;
 }) {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const qc = useQueryClient();
   const shots = shotsQ.data?.items ?? [];
   // A removed screenshot's ✕ goes with it: the focus moves to the file picker, which stays.
@@ -685,7 +687,7 @@ function Attachments({
           />
           <div className="flex min-w-0 flex-1 flex-col">
             <span className="text-sm">{t("recorder.composer.screenshot", { n: i + 1 })}</span>
-            <span className="text-xs text-muted tabular-nums">{formatBytes(shot.size)}</span>
+            <span className="text-xs text-muted tabular-nums">{formatBytes(shot.size, lang)}</span>
           </div>
           {!readOnly && (
             <IconButton

frontend/src/components/KeyGate.tsx

@@ -168,15 +168,18 @@ export default function KeyGate({ meId, compact = false }: { meId: number; compa
           {err}
         </div>
       )}
-      <Button variant="primary" size="md" onClick={submit} disabled={busy || !pass}>
-        <Lock className="w-4 h-4" />
-        {configured ? t("messages.unlock") : t("messages.setUp")}
-      </Button>
-      {configured && (
-        <Button variant="link-muted" onClick={toReset} className="text-xs">
-          {t("messages.forgotPass")}
+      {/* One row with a gap: as two bare inline buttons the link sat flush against the primary. */}
+      <div className="flex flex-wrap items-center gap-3">
+        <Button variant="primary" size="md" onClick={submit} disabled={busy || !pass}>
+          <Lock className="w-4 h-4" />
+          {configured ? t("messages.unlock") : t("messages.setUp")}
         </Button>
-      )}
+        {configured && (
+          <Button variant="link-muted" onClick={toReset} className="text-xs">
+            {t("messages.forgotPass")}
+          </Button>
+        )}
+      </div>
       {!configured && !compact && <p className="text-xs text-muted">{t("messages.setupWarn")}</p>}
     </div>
   );

frontend/src/components/Messages.keyboard.dom.test.tsx

@@ -8,7 +8,10 @@ import { act, cleanup, render, screen } from "@testing-library/react";
 
 vi.mock("react-i18next", async (importOriginal) => {
   const actual = await importOriginal<typeof import("react-i18next")>();
-  return { ...actual, useTranslation: () => ({ t: (key: string) => key }) };
+  return {
+    ...actual,
+    useTranslation: () => ({ i18n: { language: "en" }, t: (key: string) => key }),
+  };
 });
 
 const conversation = (id: number, name: string) => ({

frontend/src/components/NotificationsPanel.menu.dom.test.tsx

@@ -23,7 +23,7 @@ const h = vi.hoisted(() => ({
 
 vi.mock("react-i18next", async (importOriginal) => ({
   ...(await importOriginal<typeof import("react-i18next")>()),
-  useTranslation: () => ({ t: (key: string) => key }),
+  useTranslation: () => ({ i18n: { language: "en" }, t: (key: string) => key }),
 }));
 vi.mock("./confirmContext", () => ({ useConfirm: () => h.confirm }));
 vi.mock("../lib/useLiveQuery", () => ({
@@ -330,3 +330,37 @@ describe("NotificationsPanel · the page's background menu", () => {
     expect(menuRows()).toEqual(["inbox.markAllRead"]);
   });
 });
+
+describe("a download-lifecycle notice (E30)", () => {
+  it("is named from its data in the reader's language, never the server's English title", () => {
+    h.server = [
+      server(1, {
+        type: "download_shared",
+        title: "Cats was shared with you",
+        body: null,
+        data: { kind: "download_shared", from: "a@b.c", title: "Cats" },
+      } as never),
+      server(2, {
+        type: "download_expiring",
+        title: "Dogs",
+        data: { kind: "download_expiring", title: "Dogs" },
+      } as never),
+      server(3, {
+        type: "download_expired",
+        title: "download", // an untitled video: the server's English fallback word
+        data: { kind: "download_expired", title: null },
+      } as never),
+      server(4, {
+        type: "download_evicted",
+        title: "Birds",
+        data: { kind: "download_evicted", title: "Birds" },
+      } as never),
+    ];
+    mount();
+    for (const key of ["downloadShared", "downloadExpiring", "downloadExpired", "downloadEvicted"])
+      expect(screen.getByText(`inbox.${key}.title`)).toBeTruthy();
+    for (const title of ["Cats", "Dogs", "Birds"]) expect(screen.getByText(title)).toBeTruthy();
+    expect(screen.queryByText("Cats was shared with you")).toBeNull();
+    expect(screen.queryByText("download")).toBeNull();
+  });
+});

frontend/src/components/NotificationsPanel.tsx

@@ -19,6 +19,7 @@ import {
   X,
 } from "lucide-react";
 import { api, type AppNotification } from "../lib/api";
+import { jobRunText } from "../lib/jobResult";
 import { notifyActionError } from "../lib/actionErrors";
 import { useLiveQuery } from "../lib/useLiveQuery";
 import { focusAccessRequestsTab } from "../lib/adminUsersTab";
@@ -438,6 +439,14 @@ export default function NotificationsPanel() {
 }
 
 /** A server notification's link, from its type and typed payload (the row's button and its menu). */
+// The download-lifecycle notification types → their `inbox.<key>` copy.
+const DOWNLOAD_LIFECYCLE: Record<string, string | undefined> = {
+  download_shared: "downloadShared",
+  download_expiring: "downloadExpiring",
+  download_expired: "downloadExpired",
+  download_evicted: "downloadEvicted",
+};
+
 function serverKind(n: AppNotification): "scheduler" | "download" | null {
   if (n.type === "scheduler" && typeof n.data?.job_id === "string") return "scheduler";
   if (n.type === "download_done") return "download";
@@ -498,6 +507,7 @@ function NotificationRow({
   onOpenScheduler: () => void;
   onOpenDownloads: () => void;
 }) {
+  const lang = useTranslation().i18n.language;
   // The maintenance producer ships the affected videos in `data.videos`; list a few titles.
   const videos: { id: string; title: string | null }[] = Array.isArray(n.data?.videos)
     ? n.data!.videos
@@ -508,6 +518,8 @@ function NotificationRow({
   const isScheduler = serverKind(n) === "scheduler";
   const isDownloadDone = serverKind(n) === "download";
   const isEmailUndelivered = n.type === "email_undelivered" && typeof n.data?.reason === "string";
+  // A download's life after it is done (E30): shared with you, about to expire, expired, evicted.
+  const lifecycle = DOWNLOAD_LIFECYCLE[n.type];
   let title = n.title;
   let body = n.body;
   if (isMaintenance) {
@@ -516,13 +528,11 @@ function NotificationRow({
     title = t("inbox.maintenance.title");
     body = t("inbox.maintenance.body", { count: d.count });
   } else if (isScheduler) {
-    // "<Job label> finished/failed", with the raw result summary as the (technical) body.
-    const d = n.data as { job_id: string; status?: string; summary?: string };
-    const job = t(`scheduler.jobs.${d.job_id}`, d.job_id);
-    title = t(d.status === "error" ? "inbox.jobDone.titleError" : "inbox.jobDone.titleOk", {
-      job,
-    });
-    body = d.summary || n.body;
+    // "<Job label> finished/failed", with the result as the body — named in the reader's language
+    // when it rode along as data (E30), else the English summary of an older notice.
+    const run = jobRunText(t, n.data as { job_id: string }, lang);
+    title = run.title;
+    body = run.body || n.body;
   } else if (isEmailUndelivered) {
     // Email is fail-soft: a drop leaves no error anywhere else, so this notice IS the trace. Name
     // the message that was lost, since that is what tells the operator what their users didn't get.
@@ -534,6 +544,13 @@ function NotificationRow({
         : "inbox.emailUndelivered.sendFailed",
       { subject: d.subject || n.body || "" },
     );
+  } else if (lifecycle) {
+    // The server stores an English title ("… was shared with you", or the bare word "download" for an
+    // untitled video); the notice is named from `data`, the video's title as the body — none when it
+    // has no title (or the share notice predates the title riding along).
+    const d = n.data as { title?: string | null; from?: string };
+    title = t(`inbox.${lifecycle}.title`, { from: d.from ?? "" });
+    body = d.title || null;
   } else if (isDownloadDone) {
     // "Download ready" / "Edit ready" per the producer's kind, with the video's title as the body
     // (shipped in data.title). Same notification type; the copy differs so an edit isn't mislabelled.

frontend/src/components/PersonalViewsModal.dom.test.tsx

@@ -22,6 +22,7 @@ vi.mock("react-i18next", async (importOriginal) => {
   return {
     ...actual,
     useTranslation: () => ({
+      i18n: { language: "en" },
       t: (key: string, o?: { name?: string }) =>
         key === "common.order.dragNamed" ? `${key}:${o?.name}` : key,
     }),

frontend/src/components/PlayerModal.tsx

@@ -44,7 +44,7 @@ import {
   channelYouTubeUrl,
   formatDate,
   formatDuration,
-  formatViews,
+  formatCompact,
   relativeTime,
 } from "../lib/format";
 import { renderDescription } from "./descriptionLinks";
@@ -119,6 +119,7 @@ export default function PlayerModal({
   // icon next to the name keeps the open-on-YouTube behaviour.
 }) {
   const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const { openChannel } = useNavigationActions();
   const qc = useQueryClient();
   const descFade = useScrollFade();
@@ -899,12 +900,12 @@ export default function PlayerModal({
                       ·{" "}
                       {t("player.views", {
                         count: active.view_count,
-                        formattedCount: formatViews(active.view_count),
+                        formattedCount: formatCompact(active.view_count, lang),
                       })}
                     </span>
                   )}
                   <span>
-                    · {relativeTime(active.published_at)}
+                    · {relativeTime(active.published_at, lang)}
                     {active.published_at && ` · ${fullDate(active.published_at)}`}
                   </span>
                   {active.duration_seconds != null && (
@@ -924,13 +925,13 @@ export default function PlayerModal({
                       ·{" "}
                       {t("player.views", {
                         count: detail.data.view_count,
-                        formattedCount: formatViews(detail.data.view_count),
+                        formattedCount: formatCompact(detail.data.view_count, lang),
                       })}
                     </span>
                   )}
                   {detail.data?.published_at && (
                     <span>
-                      · {relativeTime(detail.data.published_at)} ·{" "}
+                      · {relativeTime(detail.data.published_at, lang)} ·{" "}
                       {fullDate(detail.data.published_at)}
                     </span>
                   )}

frontend/src/components/Playlists.dom.test.tsx

@@ -424,6 +424,10 @@ describe("Playlists — removing a row, and undoing it", () => {
       .map((c) => c[0] as { message: string; action?: { label: string; onClick: () => void } })
       .filter((n) => n.message?.startsWith("playlists.removedToast"))
       .pop()!;
+  // The list's keys are live once its effect has registered it (`data-nav-list`), a passive effect that
+  // can run AFTER the rows are on screen: a key pressed on a slow machine in between did nothing (CI flake).
+  const keysLiveOn = (el: Element) =>
+    waitFor(() => expect(el.closest("[data-nav-list]")).not.toBeNull());
   const pressKey = (key: string) =>
     act(() => {
       (document.activeElement ?? document.body).dispatchEvent(
@@ -497,7 +501,7 @@ describe("Playlists — removing a row, and undoing it", () => {
     const lists = { 1: [vid("A", 0), vid("B", 0), vid("C", 0)] };
     serverRemoves(lists);
     mount(lists);
-    await screen.findByRole("button", { name: "card.play — Video C" });
+    await keysLiveOn(await screen.findByRole("button", { name: "card.play — Video C" }));
     pressKey("j");
     pressKey("j");
     expect(document.activeElement?.textContent).toContain("Video B");
@@ -511,7 +515,7 @@ describe("Playlists — removing a row, and undoing it", () => {
     vi.spyOn(api, "removeFromPlaylist").mockResolvedValue(undefined as never);
     h.selectedId = WATCH_LATER;
     mount({ [WATCH_LATER]: [vid("A", 0), vid("B", 0)] });
-    await screen.findByRole("button", { name: "card.play — Video B" });
+    await keysLiveOn(await screen.findByRole("button", { name: "card.play — Video B" }));
     pressKey("j");
     pressKey("Delete");
     await act(async () => void (await new Promise((r) => setTimeout(r, 20))));
@@ -617,7 +621,9 @@ describe("Playlists · a narrow table", () => {
 describe("Playlists — the rows are a keyboard list", () => {
   it("walks the rows with j and plays the focused one on Enter", async () => {
     mount({ 1: [vid("A", 0), vid("B", 0)] });
-    await screen.findByRole("button", { name: "card.play — Video B" });
+    const row = await screen.findByRole("button", { name: "card.play — Video B" });
+    // The keys are live once the list's effect registers it, which can land after the rows paint.
+    await waitFor(() => expect(row.closest("[data-nav-list]")).not.toBeNull());
     const press = (key: string) =>
       act(() => {
         (document.activeElement ?? document.body).dispatchEvent(

frontend/src/components/Playlists.tsx

@@ -160,7 +160,8 @@ export default function Playlists() {
   // The selected playlist lives in PlaylistsProvider, shared with the PlaylistsRail (which owns the
   // list + its rail controls). This detail pane reacts to the selection.
   const { selectedId } = usePlaylists();
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const qc = useQueryClient();
   const plActions = usePlaylistActions();
   const [renaming, setRenaming] = useState(false);
@@ -391,8 +392,8 @@ export default function Playlists() {
 
   const filterActive = Object.values(filters).some(isActive);
   const shown = useMemo(
-    () => applyView(filterRows(items, columns, filters), columns, viewSort, groupBy),
-    [items, columns, filters, viewSort, groupBy],
+    () => applyView(filterRows(items, columns, filters), columns, viewSort, groupBy, lang),
+    [items, columns, filters, viewSort, groupBy, lang],
   );
   // Read by the drag announcements, which must report the CURRENT positions without making the
   // announcement closures a render dependency of DndContext.
@@ -909,7 +910,7 @@ export default function Playlists() {
                 <div className="flex items-center gap-2 mt-1 flex-wrap">
                   <span className="text-xs text-muted">
                     {t("playlists.itemCount", { count: items.length })}
-                    {totalSeconds > 0 && ` · ${formatRuntime(totalSeconds)}`}
+                    {totalSeconds > 0 && ` · ${formatRuntime(totalSeconds, lang)}`}
                     {filterActive && ` · ${t("playlists.filteredCount", { count: shown.length })}`}
                   </span>
                   {(items.length > 1 || viewActive) && (

frontend/src/components/PlaylistsRail.tsx

@@ -4,6 +4,7 @@ import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { qk } from "../lib/queryKeys";
 import { ListVideo, Pin, Plus, RefreshCw, Youtube } from "lucide-react";
 import { api, type Playlist } from "../lib/api";
+import { compareText } from "../lib/collate";
 import { formatRuntime } from "../lib/format";
 import { notify } from "../lib/notifications";
 import { notifyYouTubeActionError } from "../lib/youtubeErrors";
@@ -59,7 +60,8 @@ export default function PlaylistsRail({
   // box and the Playlists detail pane); this rail owns the list query + its own controls.
   const { search, selectedId } = usePlaylists();
   const { setSelectedId } = usePlaylistsActions();
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
+  const lang = i18n.language;
   const qc = useQueryClient();
   const [plSort, setPlSort] = useState<PlSort>(() => readAccountMerged(LS.plSort, PL_SORT_DEFAULT));
   const plSortOptions: SortOption[] = [
@@ -123,7 +125,7 @@ export default function PlaylistsRail({
       if (plSort.dirtyFirst && a.dirty !== b.dirty) return a.dirty ? -1 : 1;
       switch (plSort.key) {
         case "name":
-          return sign * plName(a).localeCompare(plName(b));
+          return sign * compareText(plName(a), plName(b), lang);
         case "count":
           return sign * (a.item_count - b.item_count);
         case "duration":
@@ -134,7 +136,7 @@ export default function PlaylistsRail({
           return 0;
       }
     });
-  }, [playlists, plSort, plName]);
+  }, [playlists, plSort, plName, lang]);
 
   const q = search.trim().toLowerCase();
   const visiblePlaylists = useMemo(
@@ -366,7 +368,7 @@ export default function PlaylistsRail({
                       <div className="text-2xs text-muted">
                         {t("playlists.itemCount", { count: pl.item_count })}
                         {pl.total_duration_seconds > 0 &&
-                          ` · ${formatRuntime(pl.total_duration_seconds)}`}
+                          ` · ${formatRuntime(pl.total_duration_seconds, lang)}`}
                       </div>
                     </div>
                   </Pressable>

frontend/src/components/PlexBrowse.tsx

@@ -93,7 +93,7 @@ const BACKABLE_VIEWS: readonly string[] = [
 ];
 
 export default function PlexBrowse() {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
   const qc = useQueryClient();
   // Scope / watch-state / sort / filters live in PlexProvider (edited mainly from PlexSidebar); the
   // search term (q) comes from the shared header box; the rail hands off a playlist to open via the
@@ -103,7 +103,7 @@ export default function PlexBrowse() {
   const dq = useDebounced(q.trim(), 350);
   // Active language for the HU overlay: "hu" serves Hungarian metadata, else EN. In the query keys so
   // a switch refetches the grid/facets/detail; useTranslation re-renders this component on switch.
-  const lang = plexLang();
+  const lang = plexLang(i18n.language);
   // The language the grid query is allowed to run at — lags `lang` by one render on a switch so the
   // genre-clear effect (below) can settle first (see the effect for why).
   const [committedLang, setCommittedLang] = useState(lang);
@@ -116,7 +116,7 @@ export default function PlexBrowse() {
   // The provider holds sort scope-agnostically; heal it against THIS scope's options so a movie-only
   // key (e.g. duration) left over from before a switch to shows doesn't ask for an unavailable sort.
   const sortState = healPlexSort(sort, scope);
-  const sortOptions = plexSortOptions(scope, (k) => t(`plex.sort.${k}`));
+  const sortOptions = plexSortOptions(scope, (k) => t(`plex.sort.${k}`), lang);
   // Same idiom for the search scope-pill: a movie-only scope can't hold the Episode field.
   const fieldState = healPlexField(field, scope);
   // Discover is the landing (E5 S4); the flat grid is the "Browse all" secondary view. A header search
@@ -468,7 +468,9 @@ export default function PlexBrowse() {
   if (sub.view.kind === "person") {
     const personName = sub.view.name;
     return (
+      // Keyed by the name: another person is a fresh page (their own bio wait, a collapsed bio).
       <PlexPersonView
+        key={personName}
         name={personName}
         onBack={sub.back}
         onOpenCard={onCard}
@@ -481,7 +483,9 @@ export default function PlexBrowse() {
   if (sub.view.kind === "show") {
     const showId = sub.view.id;
     return (
+      // Keyed by the show: another show is a fresh page (its own summary collapsed, no open dialog).
       <PlexShowView
+        key={showId}
         showId={showId}
         onBack={sub.back}
         onPlay={(epRk, queue, fromStart) =>
@@ -697,7 +701,7 @@ export default function PlexBrowse() {
               {episodes.length > 0 && (
                 <h2 className="text-sm font-semibold mb-2">{t("plex.unified.titles")}</h2>
               )}
-              <NavGrid className="grid grid-cols-[repeat(auto-fill,minmax(150px,1fr))] gap-3">
+              <NavGrid className="grid grid-cols-[repeat(auto-fill,minmax(9.375rem,1fr))] gap-3">
                 {items.map((c, i) => (
                   <PlexPosterCard
                     key={c.id}
@@ -719,7 +723,7 @@ export default function PlexBrowse() {
           {episodes.length > 0 && (
             <section className="mt-8">
               <h2 className="text-sm font-semibold mb-3">{t("plex.unified.episodes")}</h2>
-              <NavGrid className="grid grid-cols-[repeat(auto-fill,minmax(230px,1fr))] gap-x-3 gap-y-4">
+              <NavGrid className="grid grid-cols-[repeat(auto-fill,minmax(14.375rem,1fr))] gap-x-3 gap-y-4">
                 {episodes.map((ep, i) => (
                   <EpisodeCard
                     key={ep.id}

frontend/src/components/PlexCollectionView.dom.test.tsx

@@ -5,6 +5,7 @@
 // expanded (lazily, on click) into its episodes in season→episode order; a show that expands to zero
 // episodes must NOT silently no-op but surface the `playEmpty` info notice. api.plexCollection /
 // api.plexShow are stubbed so the queries resolve synchronously; notify is spied to assert the notice.
+import { setLanguage } from "../i18n";
 import { describe, it, expect, vi, beforeAll, afterEach } from "vitest";
 import { render, screen, fireEvent, waitFor, cleanup } from "@testing-library/react";
 import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
@@ -26,7 +27,12 @@ beforeAll(() => {
 
 vi.mock("react-i18next", async (importOriginal) => {
   const actual = await importOriginal<typeof import("react-i18next")>();
-  return { ...actual, useTranslation: () => ({ t: (key: string) => key }) };
+  // the real instance: these tests switch the language with setLanguage
+  const real = (await import("i18next")).default;
+  return {
+    ...actual,
+    useTranslation: () => ({ i18n: real, t: (key: string) => key }),
+  };
 });
 vi.mock("./confirmContext", () => ({ useConfirm: () => async () => true }));
 
@@ -119,7 +125,7 @@ describe("PlexCollectionView — Play-all", () => {
     const onPlay = mount([card("show1", "show")]);
     fireEvent.click(await screen.findByText("plex.collection.playAll"));
     await waitFor(() => expect(onPlay).toHaveBeenCalledTimes(1));
-    expect(spyShow).toHaveBeenCalledWith("show1");
+    expect(spyShow).toHaveBeenCalledWith("show1", "en");
     expect(onPlay).toHaveBeenCalledWith("s1e1", ["s1e1", "s1e2", "s2e1"]);
   });
 
@@ -205,3 +211,43 @@ describe("PlexCollectionView — after the sort joined the query key", () => {
     expect(screen.queryByText("plex.collection.playAll")).toBeNull();
   });
 });
+
+describe("PlexCollectionView — the reader's language (E30)", () => {
+  it("asks for the members, and a show it expands, in Hungarian", async () => {
+    setLanguage("hu");
+    try {
+      const spyShow = vi.spyOn(api, "plexShow").mockResolvedValue(showDetail([["s1e1"]]));
+      const onPlay = mount([card("show1", "show")]);
+      fireEvent.click(await screen.findByText("plex.collection.playAll"));
+      await waitFor(() => expect(onPlay).toHaveBeenCalledTimes(1));
+      expect(vi.mocked(api.plexCollection).mock.calls[0]?.[2]).toBe("hu");
+      expect(spyShow).toHaveBeenCalledWith("show1", "hu");
+    } finally {
+      setLanguage("en");
+    }
+  });
+});
+
+describe("PlexCollectionView — the summary (E30 review)", () => {
+  it("offers no More under a summary that fits", async () => {
+    vi.spyOn(api, "plexCollection").mockResolvedValue({
+      ...detail([card("m1", "movie")]),
+      summary: "One short line.",
+    } as PlexCollectionDetail);
+    const qc = new QueryClient({ defaultOptions: { queries: { retry: false } } });
+    render(
+      <QueryClientProvider client={qc}>
+        <PlexCollectionView
+          collectionId="col1"
+          onBack={() => {}}
+          onPlay={vi.fn()}
+          onOpenCard={() => {}}
+          onRestartCard={() => {}}
+          onInfoCard={() => {}}
+        />
+      </QueryClientProvider>,
+    );
+    await screen.findByText("One short line.");
+    expect(screen.queryByText("plex.textMore")).toBeNull(); // jsdom: nothing is cut
+  });
+});

frontend/src/components/PlexCollectionView.tsx

@@ -3,6 +3,7 @@ import { useTranslation } from "react-i18next";
 import { useQuery, useQueryClient } from "@tanstack/react-query";
 import { Play, Shuffle, Pencil, Trash2, Plus, X, Lock, Check, Search } from "lucide-react";
 import { qk } from "../lib/queryKeys";
+import { plexLang } from "../i18n";
 import { api, isIntrinsicReadOnly, type PlexCard, type PlexCollectionDetail } from "../lib/api";
 import { formatRuntime } from "../lib/format";
 import { notifyActionError } from "../lib/actionErrors";
@@ -23,6 +24,7 @@ import { toggleWatchState } from "../lib/plexWatch";
 import { LoadingState, StateMessage } from "./ui/QueryState";
 import NavGrid from "./ui/NavGrid";
 import { Button } from "./ui/Button";
+import { ClampedText } from "./ui/ClampedText";
 import { IconButton } from "./ui/IconButton";
 import { Input } from "./ui/Input";
 import { useReturnFocus } from "./ui/useReturnFocus";
@@ -66,7 +68,7 @@ export default function PlexCollectionView({
   onRestartCard: (card: PlexCard) => void;
   onInfoCard: (card: PlexCard) => void;
 }) {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
   const qc = useQueryClient();
   const confirm = useConfirm();
   // One menu for the member grid (see ui/ContextMenu).
@@ -83,10 +85,11 @@ export default function PlexCollectionView({
   // ONE key for the read and every write into it: when the sort joined the key, the watched toggle's
   // optimistic write kept the old spelling and landed on an entry nothing reads (setQueryData matches
   // exactly), so the click did nothing visible until a reload.
-  const detailKey = qk.plexCollections("detail", collectionId, sortPref.key, sortPref.dir);
+  const lang = plexLang(i18n.language);
+  const detailKey = qk.plexCollections("detail", collectionId, sortPref.key, sortPref.dir, lang);
   const q = useQuery({
     queryKey: detailKey,
-    queryFn: () => api.plexCollection(collectionId, sortPref),
+    queryFn: () => api.plexCollection(collectionId, sortPref, lang),
     // A re-sort keeps the current page on screen while the new order loads. Without it every sort
     // change was a key with no data yet, and the whole page — the Sort control and its open panel
     // with it — was swapped for a spinner, so key and direction could not be set in one visit. Only
@@ -96,7 +99,6 @@ export default function PlexCollectionView({
   });
   const d = q.data;
 
-  const [expanded, setExpanded] = useState(false);
   const [renaming, setRenaming] = useState(false);
   const renameFocus = useReturnFocus(renaming);
   const [name, setName] = useState("");
@@ -116,7 +118,7 @@ export default function PlexCollectionView({
   // what the add-panel searches and which sort keys are on offer (only a movie has a runtime).
   const scope = items.some((c) => c.type === "show") ? "show" : "movie";
   const sortState = healPlexSort(sortPref, scope);
-  const sortOptions = plexSortOptions(scope, (k) => t(`plex.sort.${k}`));
+  const sortOptions = plexSortOptions(scope, (k) => t(`plex.sort.${k}`), lang);
   // Movies/episodes are playable leaves that queue as themselves; a show can't queue directly, so
   // Play-all expands it into its episodes (buildQueue). Either kind means there's something to play —
   // this is what a show-collection needs: before, `playable` held only leaves, so a show-collection's
@@ -134,8 +136,8 @@ export default function PlexCollectionView({
       items.map(async (c) => {
         if (c.type !== "show") return [c.id];
         const detail = await qc.fetchQuery({
-          queryKey: qk.plexShow(c.id),
-          queryFn: () => api.plexShow(c.id),
+          queryKey: qk.plexShow(c.id, lang),
+          queryFn: () => api.plexShow(c.id, lang),
         });
         return showEpisodeKeys(detail);
       }),
@@ -262,7 +264,7 @@ export default function PlexCollectionView({
       (d.year_max && d.year_max !== d.year_min ? `${d.year_min} — ${d.year_max}` : `${d.year_min}`),
     d?.content_rating,
     d && t("plex.browse.items", { count: d.child_count ?? items.length }),
-    formatRuntime(d?.total_runtime_s),
+    formatRuntime(d?.total_runtime_s, lang),
   ].filter(Boolean) as string[];
 
   return (
@@ -331,21 +333,13 @@ export default function PlexCollectionView({
             )}
 
             {d.summary && (
-              <div className="mt-3">
-                <p
-                  className={`measure text-sm leading-relaxed text-muted ${expanded ? "" : "line-clamp-3"}`}
-                >
-                  {d.summary}
-                </p>
-                <Button
-                  variant="link"
-                  aria-expanded={expanded}
-                  onClick={() => setExpanded((v) => !v)}
-                  className="mt-1 text-xs"
-                >
-                  {expanded ? t("plex.collection.less") : t("plex.collection.more")}
-                </Button>
-              </div>
+              <ClampedText
+                text={d.summary}
+                lines={3}
+                moreLabel={t("plex.textMore")}
+                lessLabel={t("plex.textLess")}
+                className="mt-3"
+              />
             )}
 
             <div className="mt-4 flex flex-wrap gap-2">

frontend/src/components/PlexDiscover.dom.test.tsx

@@ -27,6 +27,7 @@ vi.mock("react-i18next", async (importOriginal) => {
   return {
     ...actual,
     useTranslation: () => ({
+      i18n: { language: "en" },
       t: (key: string, opts?: Record<string, unknown>) =>
         opts?.title ? `${key}:${opts.title}` : key,
     }),
@@ -289,8 +290,9 @@ describe("PlexDiscover · keyboard", () => {
     );
     await screen.findAllByText("Random Pick");
     // Five rails (continue, recently watched, recently added, because-you-watched, surprise) + genres.
+    // Registered by a passive effect, which can land after the cards paint.
+    await waitFor(() => expect(document.querySelectorAll("[data-nav-list]")).toHaveLength(6));
     const lists = [...document.querySelectorAll("[data-nav-list]")];
-    expect(lists.length).toBe(6);
     // …and each holds its cards as items: the genre tiles too, not only the posters.
     expect(lists.every((list) => list.querySelector("[data-nav-index]"))).toBe(true);
     const step = () => {

frontend/src/components/PlexDiscover.tsx

@@ -108,9 +108,9 @@ export default function PlexDiscover({
   onGenre: (genre: string) => void;
   onSeeAllRecent: () => void;
 }) {
-  const { t } = useTranslation();
+  const { t, i18n } = useTranslation();
   const qc = useQueryClient();
-  const lang = plexLang();
+  const lang = plexLang(i18n.language);
   // The active sidebar filters narrow every rail, so Discover matches the Browse grid. They're in the
   // query keys so a filter change refetches (and the watched-toggle setQueryData below keys the same).
   const { filters } = usePlex();