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, 19 insertions, 1 deletions

diff --git a/packages/meshbay-hub/src/meshbay_hub/static/group-settings.js b/packages/meshbay-hub/src/meshbay_hub/static/group-settings.js
index 4ae832f..22532fa 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/group-settings.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/group-settings.js
@@ -1,5 +1,5 @@
 import {
-  html, useState, useEffect, useCallback, useMemo,
+  html, useState, useEffect, useCallback, useMemo, useRef,
 } from './vendor/htm-preact.js';
 import { t, getLocale, LOCALES } from './i18n.js';
 import { Icon } from './icon.js';
@@ -311,6 +311,24 @@ function GroupSettingsPanel({ groupId, group, token, transportRef, gekRef,
     }
   }, [transportRef, onTmdbConfig, tmdbTokenDraft, tmdbConfig, tmdbLanguage]);
 
+  // A node that has never had a language explicitly set would otherwise
+  // query TMDB with none at all — which TMDB itself resolves to English,
+  // regardless of who the operator is — even though this form already
+  // *suggests* their own UI language as the value. Applied once,
+  // automatically, the first time the operator (the only one who can sign
+  // this) is actually connected to see it: a real default tied to whoever
+  // runs this particular node, never a single hardcoded language for every
+  // node. `tmdbConfig.language` being set at all — from this or from an
+  // explicit save — is what stops it from ever firing again, so "unless
+  // manually changed" holds regardless of which of the two set it first.
+  const autoLanguageSetRef = useRef(false);
+  useEffect(() => {
+    if (!isNodeAdmin || !connected || !tmdbConfig || tmdbConfig.language) return;
+    if (autoLanguageSetRef.current) return;
+    autoLanguageSetRef.current = true;
+    saveTmdbConfig(tmdbEnabled);
+  }, [isNodeAdmin, connected, tmdbConfig, tmdbEnabled, saveTmdbConfig]);
+
   // Every folder anywhere in the group's shared index, deepest included —
   // `entries[].path` is each file's containing directory (files-app.js's own
   // convention), so every ancestor prefix of it is a real folder, and