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/rollup.py

@@ -25,9 +25,7 @@ def rollup(cards: list[dict]) -> dict:
     total = len(cards)
     watched = sum(1 for c in cards if c.get("status") == "watched")
     inprog = [
-        c
-        for c in cards
-        if (c.get("position_seconds") or 0) > 0 and c.get("status") != "watched"
+        c for c in cards if (c.get("position_seconds") or 0) > 0 and c.get("status") != "watched"
     ]
     resume = None
     if inprog:
@@ -77,15 +75,11 @@ def agg_subquery(db: Session, user_id: int, include_resumed: bool = False):
 def state_map(db: Session, user_id: int, show_ids: list[int]) -> dict[int, str]:
     if not show_ids:
         return {}
-    rows = db.execute(
-        agg_subquery(db, user_id).where(PlexItem.show_id.in_(show_ids))
-    ).all()
+    rows = db.execute(agg_subquery(db, user_id).where(PlexItem.show_id.in_(show_ids))).all()
     return {r.show_id: show_status(r.total, r.watched, r.inprog) for r in rows}
 
 
-def item_state_map(
-    db: Session, user_id: int, item_ids: list[int]
-) -> dict[int, PlexState]:
+def item_state_map(db: Session, user_id: int, item_ids: list[int]) -> dict[int, PlexState]:
     """A user's PlexState rows for a set of leaf items (movies or episodes), keyed by item_id — the
     leaf analogue of `state_map` (which rolls a show's episodes up to a status string). One batched
     fetch, so the caller serializes cards without a per-card query. Empty in → empty dict (no `IN ()`)."""
@@ -94,8 +88,6 @@ def item_state_map(
     return {
         s.item_id: s
         for s in db.execute(
-            select(PlexState).where(
-                PlexState.user_id == user_id, PlexState.item_id.in_(item_ids)
-            )
+            select(PlexState).where(PlexState.user_id == user_id, PlexState.item_id.in_(item_ids))
         ).scalars()
     }