feat(player-stats): local listening history tab with heatmap and summaries (#849)

* feat(player-stats): local listening history tab with heatmap and summaries

Record play sessions in library.sqlite when the library index is enabled,
add Rust read APIs and Tauri commands for year/day aggregates, and ship the
Player stats UI with session clustering, event-driven live refresh, and a
notice when some servers are excluded from indexing.

* test(player-stats): split play_session repo and expand test coverage

Move the repository into play_session/ (completion, cluster, integration tests),
add remap/purge/FK coverage in Rust, and cover ingestion gates plus live-refresh
hooks on the frontend per spec v0.3.

* docs(release): CHANGELOG and credits for player stats (PR #849)

* fix(player-stats): satisfy tsc and clippy CI gates

Use InternetRadioStation field names in the radio skip test and replace
manual month/day range checks with RangeInclusive::contains.

src/components/statistics/PlayerStatsPartialIndexNotice.tsx

@@ -0,0 +1,40 @@
+import { Info } from 'lucide-react';
+import { useMemo } from 'react';
+import { useTranslation } from 'react-i18next';
+import { useNavigate } from 'react-router-dom';
+import { useAuthStore } from '../../store/authStore';
+import { useLibraryIndexStore } from '../../store/libraryIndexStore';
+
+export default function PlayerStatsPartialIndexNotice() {
+  const { t } = useTranslation();
+  const navigate = useNavigate();
+  const servers = useAuthStore(s => s.servers);
+  const masterEnabled = useLibraryIndexStore(s => s.masterEnabled);
+  const syncExcludedByServer = useLibraryIndexStore(s => s.syncExcludedByServer);
+
+  const excludedCount = useMemo(
+    () => servers.filter(s => syncExcludedByServer[s.id] === true).length,
+    [servers, syncExcludedByServer],
+  );
+
+  if (!masterEnabled || excludedCount === 0 || servers.length <= 1) {
+    return null;
+  }
+
+  return (
+    <div className="settings-hint settings-hint-info player-stats-partial-index-notice" role="status">
+      <Info size={16} aria-hidden style={{ flexShrink: 0, marginTop: 2 }} />
+      <span>
+        {t('statistics.playerPartialIndexNotice')}
+        {' '}
+        <button
+          type="button"
+          className="player-stats-partial-index-link"
+          onClick={() => navigate('/settings', { state: { tab: 'library' } })}
+        >
+          {t('statistics.playerPartialIndexSettings')}
+        </button>
+      </span>
+    </div>
+  );
+}