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, 61 insertions, 0 deletions

diff --git a/packages/meshbay-hub/src/meshbay_hub/static/style.css b/packages/meshbay-hub/src/meshbay_hub/static/style.css
index e1900d9..446a751 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/style.css
+++ b/packages/meshbay-hub/src/meshbay_hub/static/style.css
@@ -2624,3 +2624,64 @@ a.transfer-name {
 .video-flat-chevron.open { transform: rotate(180deg); }
 .video-flat-season { padding-left: 24px; margin-bottom: 8px; }
 .video-flat-season .video-season-header { margin: 6px 0 4px; }
+
+/* Season tab bar — docs/mediacenter.md §5.4's per-season overview view */
+.video-season-tabs {
+  display: flex;
+  gap: 4px;
+  margin: 10px 0;
+  overflow-x: auto;
+}
+.video-season-tab {
+  padding: 5px 12px;
+  border: 1px solid var(--border);
+  border-radius: 999px;
+  background: var(--bg-surface);
+  color: var(--text-dim);
+  font-size: 0.85em;
+  white-space: nowrap;
+  cursor: pointer;
+}
+.video-season-tab:hover { border-color: var(--accent); color: var(--text); }
+.video-season-tab.active { border-color: var(--accent); color: var(--accent); background: var(--bg-raised); }
+
+.video-fix-match { margin: 8px 0; font-size: 0.85em; }
+
+/* Operator search-and-correct overlay, layered on top of the detail modal.
+   Must beat .video-overlay's own z-index: 200 — both are position: fixed,
+   so without an explicit higher value here this one loses the stacking
+   order despite being the later sibling in the DOM. */
+.video-search-overlay { z-index: 210; }
+.video-search-panel { max-width: 480px; }
+.video-search-form { display: flex; gap: 8px; }
+.video-search-form input {
+  flex: 1;
+  padding: 7px 10px;
+  border: 1px solid var(--border);
+  border-radius: 6px;
+  background: var(--bg-surface);
+  color: var(--text);
+}
+.video-search-hint { font-size: 0.78em; color: var(--text-dim); margin: 6px 0 2px; }
+.video-search-error { font-size: 0.85em; color: var(--error); }
+.video-search-results { display: flex; flex-direction: column; gap: 4px; margin-top: 10px; }
+.video-search-result {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 6px;
+  border: 1px solid transparent;
+  border-radius: 6px;
+  background: none;
+  text-align: left;
+  cursor: pointer;
+}
+.video-search-result:hover:not(:disabled) { border-color: var(--accent); background: var(--bg-raised); }
+.video-search-result:disabled { opacity: 0.5; cursor: not-allowed; }
+.video-search-result-thumb { width: 46px; height: 68px; flex-shrink: 0; }
+.video-search-result-poster {
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+  border-radius: 4px;
+}