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/app/plex/query.py

@@ -104,9 +104,7 @@ def vector_match(model, lang: str, tsq):
     by its English title (search_vector_hu has no title tokens for such a row); EN matches only the EN
     vector. Ranking still uses `vector_col` (the HU vector in HU mode)."""
     if lang == "hu":
-        return or_(
-            model.search_vector_hu.op("@@")(tsq), model.search_vector.op("@@")(tsq)
-        )
+        return or_(model.search_vector_hu.op("@@")(tsq), model.search_vector.op("@@")(tsq))
     return model.search_vector.op("@@")(tsq)
 
 
@@ -195,7 +193,9 @@ def meta_filter_conds(model, p: dict, lang: str = "en") -> list:
     for kw in split_csv(p.get("keywords")):  # AND — TMDB keyword chips from the detail page (E5 S5)
         conds.append(model.keywords.contains([kw]))
     csel = split_csv(p.get("collections"))
-    if csel:  # OR (any) or AND (all) — a title can belong to several collections, mirroring genre_mode
+    if (
+        csel
+    ):  # OR (any) or AND (all) — a title can belong to several collections, mirroring genre_mode
         cc = [model.collection_keys.contains([c]) for c in csel]
         conds.append(and_(*cc) if p.get("collection_mode") == "all" else or_(*cc))
     return conds
@@ -223,9 +223,7 @@ class LibraryFilters:
     added_within: str | None = None
     directors: str | None = None
     actors: str | None = None
-    actor_mode: str = (
-        "any"  # how multiple actors combine: any (OR, default) | all (AND)
-    )
+    actor_mode: str = "any"  # how multiple actors combine: any (OR, default) | all (AND)
     studios: str | None = None
     keywords: str | None = None  # TMDB keyword chips (E5 S5), CSV; language-neutral
     collections: str | None = None  # CSV of collection rating_keys