fix(plex): the rails' Restart comes from the one rollup; plain text decodes whole entity names only

Both Continue-watching rails built a show's card state inline; they now take it from rollup.show_state, so a show part watched with nothing to resume offers Play alone there too. A named reference counts only when its whole name is an HTML5 entity: html.unescape still decoded the legacy "&not" inside "&notice;". Tests cover the grid's in-progress-but-not-resumable case through its SQL and both rails.

backend/app/discover/queries.py

@@ -40,7 +40,7 @@ from app.models import (
     VideoState,
 )
 from app.plex import rollup
-from app.plex.cards import ShowState, display_title, 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
@@ -256,7 +256,7 @@ def plex_in_progress(
     if show_libs:
         prog = rollup.agg_subquery(db, uid, include_resumed=True).subquery()
         sq = apply_show_state_filter(
-            select(PlexShow, prog.c.resumed_at, prog.c.inprog).join(
+            select(PlexShow, prog.c.resumed_at, prog.c.total, prog.c.watched, prog.c.inprog).join(
                 prog, prog.c.show_id == PlexShow.id
             ),
             prog.c.total,
@@ -264,11 +264,12 @@ def plex_in_progress(
             prog.c.inprog,
             "in_progress",
         ).where(PlexShow.library_id.in_(show_libs))
-        for sh, resumed_at, inprog in db.execute(
+        for sh, resumed_at, total, watched, inprog in db.execute(
             sq.order_by(prog.c.resumed_at.desc().nullslast()).limit(limit)
         ).all():
-            state = ShowState("in_progress", (inprog or 0) > 0)
-            out.append((resumed_at, show_card(sh, state, lang=lang)))
+            out.append(
+                (resumed_at, show_card(sh, rollup.show_state(total, watched, inprog), lang=lang))
+            )
 
     return out