feat(node,hub): season-specific overviews, manual TMDB match correction, and wizard polish

Two operator-facing fixes for a real 3-season show whose automatic TMDB
match was wrong at the show level: per-season overview/air_date tabs in the
detail modal (falling back to the show-level text when a season's own is
empty), and a "Fix match…" search-and-correct affordance that re-resolves
every file sharing the corrected show's display_title. New signed op
OP_TMDB_OVERRIDE and two read-only pairs (season_meta_req/resp,
tmdb_search_req/resp), MNP_VERSION 0.5 -> 0.6.

Also: the create-group wizard gets a spinning indexing indicator and an
app-selection step, group settings default the TMDB language to the
operator's own locale (never as a global default), and a file renamed
mid-session now re-triggers title parsing instead of being silently
skipped by the enrichment dedup guard.

Fixes two bugs found during this work: the search overlay's z-index lost
to the base video-overlay class and rendered invisibly, and season_meta's
own empty overview didn't fall back to the show-level one.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LAmyXtc6dAADsH23ydXQpY

1 files changed, 20 insertions, 2 deletions

diff --git a/packages/meshbay-node/src/meshbay_node/tmdb.py b/packages/meshbay-node/src/meshbay_node/tmdb.py
index 5e5ed9f..448a2b9 100644
--- a/packages/meshbay-node/src/meshbay_node/tmdb.py
+++ b/packages/meshbay-node/src/meshbay_node/tmdb.py
@@ -132,8 +132,26 @@ class TmdbClient:
         results = (data or {}).get("results", [])
         return _best_match(title, results, ("name", "original_name"))
 
-    async def tv_season(self, tmdb_id: str | int, season: int) -> dict | None:
-        return await self._get(f"tv/{tmdb_id}/season/{season}", {})
+    async def search_movie_results(self, title: str) -> list[dict]:
+        """
+        The raw candidate list (capped), for an operator correcting a wrong
+        automatic match (§ webrtc_server.py's tmdb_search_req) — unlike
+        `search_movie`, this doesn't collapse to TMDB's own top result: a
+        human picks from several, so several is the point.
+        """
+        data = await self._get("search/movie", {"query": title, "include_adult": "false"})
+        return (data or {}).get("results", [])[:8]
+
+    async def search_tv_results(self, title: str) -> list[dict]:
+        data = await self._get("search/tv", {"query": title})
+        return (data or {}).get("results", [])[:8]
+
+    async def tv_season(self, tmdb_id: str | int, season: int,
+                        language: str | None = None) -> dict | None:
+        """`language`, when given, overrides the configured one — same
+        English-fallback use as `movie_details`/`tv_details`."""
+        params = {"language": language} if language else {}
+        return await self._get(f"tv/{tmdb_id}/season/{season}", params)
 
     async def movie_details(self, tmdb_id: str | int, language: str | None = None) -> dict | None:
         """