style: apply ruff format across backend + scripts (line-length 100)

Mechanical, whole-tree `ruff format` pass — no behaviour change. Recorded in
.git-blame-ignore-revs (next commit) so git blame skips it.

backend/tests/test_plex_lang.py

@@ -3,6 +3,7 @@ detail endpoints serve the Hungarian `*_hu` columns (falling back to EN where a
 ?lang=en (the default) serves English. Also covers the imdb_rating IMDb-only / audience-score split.
 DB lane (`db` fixture) — skipped without Postgres.
 """
+
 from datetime import datetime, timezone
 
 from fastapi.testclient import TestClient
@@ -21,18 +22,31 @@ def _seed(db):
     db.add(lib)
     db.flush()
     m1 = PlexItem(
-        rating_key="m1", library_id=lib.id, kind="movie",
-        title="English Title", title_hu="Magyar Cím",
-        summary="English summary.", summary_hu="Magyar összefoglaló.",
-        genres=["Drama"], genres_hu=["Dráma"],
-        rating=6.5, imdb_rating=None,
-        year=2001, added_at=datetime(2024, 1, 1, tzinfo=timezone.utc),
-        people_enriched_at=datetime(2024, 1, 1, tzinfo=timezone.utc),  # serve from row, skip live enrich
+        rating_key="m1",
+        library_id=lib.id,
+        kind="movie",
+        title="English Title",
+        title_hu="Magyar Cím",
+        summary="English summary.",
+        summary_hu="Magyar összefoglaló.",
+        genres=["Drama"],
+        genres_hu=["Dráma"],
+        rating=6.5,
+        imdb_rating=None,
+        year=2001,
+        added_at=datetime(2024, 1, 1, tzinfo=timezone.utc),
+        people_enriched_at=datetime(
+            2024, 1, 1, tzinfo=timezone.utc
+        ),  # serve from row, skip live enrich
     )
     m2 = PlexItem(
-        rating_key="m2", library_id=lib.id, kind="movie",
-        title="EN Only", genres=["Comedy"],  # no HU twin
-        year=2002, added_at=datetime(2024, 1, 2, tzinfo=timezone.utc),
+        rating_key="m2",
+        library_id=lib.id,
+        kind="movie",
+        title="EN Only",
+        genres=["Comedy"],  # no HU twin
+        year=2002,
+        added_at=datetime(2024, 1, 2, tzinfo=timezone.utc),
         people_enriched_at=datetime(2024, 1, 2, tzinfo=timezone.utc),
     )
     db.add_all([m1, m2])
@@ -43,7 +57,9 @@ def _seed(db):
 
 
 def _get(db, user, monkeypatch, path):
-    monkeypatch.setattr(state, "_configured_cache", True)  # the request gate 503s an unconfigured app
+    monkeypatch.setattr(
+        state, "_configured_cache", True
+    )  # the request gate 503s an unconfigured app
     app.dependency_overrides[get_db] = lambda: db
     app.dependency_overrides[current_user] = lambda: user
     try:
@@ -110,12 +126,19 @@ def test_rating_filter_prefers_imdb_over_audience(db, monkeypatch):
     db.flush()
     # imdb 8.0 but audience 4.0 → a rating_min of 7 must MATCH (filter the displayed best score,
     # IMDb preferred), where filtering the raw audience column (4.0) would wrongly exclude it.
-    db.add(PlexItem(
-        rating_key="r1", library_id=lib.id, kind="movie", title="High IMDb",
-        imdb_rating=8.0, rating=4.0, year=2001,
-        added_at=datetime(2024, 1, 1, tzinfo=timezone.utc),
-        people_enriched_at=datetime(2024, 1, 1, tzinfo=timezone.utc),
-    ))
+    db.add(
+        PlexItem(
+            rating_key="r1",
+            library_id=lib.id,
+            kind="movie",
+            title="High IMDb",
+            imdb_rating=8.0,
+            rating=4.0,
+            year=2001,
+            added_at=datetime(2024, 1, 1, tzinfo=timezone.utc),
+            people_enriched_at=datetime(2024, 1, 1, tzinfo=timezone.utc),
+        )
+    )
     user = User(email="rating@example.com")
     db.add(user)
     db.commit()