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/store/playSessionRecorded.ts

@@ -0,0 +1,25 @@
+export type PlaySessionRecordedDetail = {
+  serverId: string;
+  trackId: string;
+  startedAtMs: number;
+};
+
+const EVENT_NAME = 'psysonic:play-session-recorded';
+
+export function emitPlaySessionRecorded(detail: PlaySessionRecordedDetail): void {
+  if (typeof window === 'undefined') return;
+  window.dispatchEvent(new CustomEvent<PlaySessionRecordedDetail>(EVENT_NAME, { detail }));
+}
+
+export function onPlaySessionRecorded(
+  listener: (detail: PlaySessionRecordedDetail) => void,
+): () => void {
+  if (typeof window === 'undefined') return () => {};
+  const wrapped = (evt: Event) => {
+    const ce = evt as CustomEvent<PlaySessionRecordedDetail>;
+    if (!ce?.detail) return;
+    listener(ce.detail);
+  };
+  window.addEventListener(EVENT_NAME, wrapped as EventListener);
+  return () => window.removeEventListener(EVENT_NAME, wrapped as EventListener);
+}