Wave 5a building blocks under the Seerr-inspired Plex enrichment (E5).
Carousel (frontend/src/components/Carousel.tsx): the one horizontal-rail
component, replacing the hand-rolled `flex overflow-x-auto` strips and the
home of the future Plex-Discover rows. Edge-fade mask, hover/focus scroll
buttons that appear only on the clipped side (useHScroll — the X-axis twin
of useScrollFade, same watch-the-children discipline), native scrollbar
hidden behind .no-scrollbar, reduced-motion-aware paging. First consumers:
CastStrip + RelatedStrip now scroll inside it (dedup + free affordances).
New i18n: common.seeAll / scrollLeft / scrollRight (en+hu).
Card-art serializer (backend/app/plex/cards.py): movie_card + show_card now
emit `art` (the wide backdrop, /api/plex/image/{rk}?variant=art) so rails and
the crossfading hero get a landscape image with no per-item fetch — gated on
art_key so an art-less item stays null and falls back to the poster. FE type
PlexCard.art?.
Tests: Carousel.dom.test (children/header/see-all, clipped-edge buttons +
paging), test_plex_cards (art present/absent by art_key). Added a
ResizeObserver stub to PlexPersonView.dom.test (it renders CastStrip, now a
Carousel consumer).
Gate: tsc x3 / eslint / prettier / knip / vitest 324 green; ruff green;
backend test lane (docker-compose.test.yml) green on the plex card tests.
Applies the three findings from the /code-review high pass on this stack:
1. to_tsquery_str moved from app.feedquery to app.utils — it's a generic
tsquery sanitizer with no feed dependency; housing it in the feed
read-model coupled the Plex browse module to the feed domain. Both feed
and plex now import it from the neutral util module.
2. feedquery.decode_cursor no longer raises fastapi.HTTPException — it raises
a plain ValueError, and routes/feed.get_feed translates it to the HTTP 400.
The read-model no longer imports fastapi, matching its "no request state"
docstring.
3. Dropped the leading underscore on the helpers that are now a cross-module
public API: feedquery {filtered_query, sort_keys, order_by, keyset_predicate,
encode_cursor, decode_cursor}; plex.query {TS_CONFIG, FIELD_COLUMNS,
field_recheck, split_csv, added_cutoff, meta_filter_conds, apply_meta_filters,
like_escape}; plex.cards {movie_card, show_card, episode_card, leaf_card}.
Genuinely-internal helpers (_channel_url, _saved_expr, _ADDED_WINDOWS,
_lib_key) keep their underscore.
Pure code motion + rename. DB-lane suite 287 passed / 2 skipped; ruff clean.
Second half of the 2026-08-17 review's "Plex query/cards extraction" — slim
the 1841-line browse.py god-module ahead of S6 (which reworks the library
query's column selection for the HU overlay).
- app/plex/cards.py: the pure grid/leaf card serializers (_movie_card,
_show_card, _episode_card, _leaf_card).
- app/plex/query.py: the library query-shaping layer — field-scope tsvector
rechecks (_TS_CONFIG, _FIELD_COLUMNS, _field_recheck) and the shared sidebar
metadata filters (_csv, _added_cutoff, _meta_filter_conds, _apply_meta_filters,
LibraryFilters, _like_escape). This is the seam S6 will touch.
browse.py imports both and keeps its route handlers; the entangled
collection/playlist card cluster (_collection_source/_collection_editable)
stays put deliberately. All helpers were browse-internal, so no external
importers change. Pure code motion — DB-lane suite 287 passed / 2 skipped;
ruff clean. browse.py 1841 -> 1667 lines.
peter