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/locales/de/statistics.ts

@@ -62,4 +62,33 @@ export const statistics = {
   exportSaving: 'Speichere…',
   exportSaved: 'Gespeichert.',
   exportSaveFailed: 'Bild konnte nicht gespeichert werden.',
+  tabServer: 'Server-Statistik',
+  tabPlayer: 'Player-Statistik',
+  playerEmpty: 'Hör zu — dein lokaler Verlauf erscheint hier, sobald der Library-Index aktiv ist.',
+  playerSummaryTime: 'Hörzeit',
+  playerListeningDayShort: '{{count}}d',
+  playerListeningHourShort: '{{count}}h',
+  playerListeningMinuteShort: '{{count}}min',
+  playerSummarySessions: 'Sitzungen',
+  playerSummaryTracks: 'Titel',
+  playerSummaryUniqueTracks: 'Einzigartige Titel',
+  playerSummaryDays: 'Days',
+  playerPartialIndexNotice: 'Einige Server sind vom lokalen Bibliotheksindex ausgeschlossen. Wiedergaben auf diesen Servern werden nicht in der Player-Statistik erfasst.',
+  playerPartialIndexSettings: 'Bibliothekseinstellungen',
+  playerSummaryCompletion: 'Voll / teilweise',
+  playerYearPrev: 'Vorheriges Jahr',
+  playerYearNext: 'Nächstes Jahr',
+  playerHeatmapLegend: 'Dunkler = mehr gehörte Titel an diesem Tag.',
+  playerHeatmapLess: 'Weniger',
+  playerHeatmapMore: 'Mehr',
+  playerDaySessions: '{{count}} Sitzungen',
+  playerDayTrackPlays: '{{count}} Titel',
+  playerDayFullPartial: '{{full}} voll · {{partial}} teilweise',
+  playerRecentDaysTitle: 'Letzte Tage',
+  playerDayToday: 'Heute',
+  playerDayYesterday: 'Gestern',
+  playerListenedSecShort: '{{seconds}} s',
+  playerListenedMinDecimal: '{{minutes}} Min.',
+  completionFull: 'Vollständig',
+  completionPartial: 'Teilweise',
 };