feat(mini-player): user-bindable keyboard shortcut to toggle mini player

Adds an 'open-mini-player' entry to the in-app keybindings (Settings →
Shortcuts), default unbound. Pressing the chord from the main window
opens the mini and minimises main; pressing it from the mini hides the
mini and restores main — both paths invoke open_mini_player which
already handles the toggle.

The mini window has its own keydown listener (same pattern as Space /
arrows for play/skip) that reads the binding from useKeybindingsStore.
Binding changes in main propagate to an open mini through the existing
storage-event sync (now also covers psysonic_keybindings) so the user
doesn't need to restart the mini after rebinding.

Localized in all 8 supported locales.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/App.tsx

@@ -812,6 +812,9 @@ function TauriEventBridge() {
           win.isFullscreen().then(fs => win.setFullscreen(!fs));
           break;
         }
+        case 'open-mini-player':
+          invoke('open_mini_player').catch(() => {});
+          break;
       }
     };
     window.addEventListener('keydown', onKey);
@@ -983,6 +986,7 @@ export default function App() {
       if (!e.key) return;
       if (e.key === 'psysonic_theme') useThemeStore.persist.rehydrate();
       else if (e.key === 'psysonic_font') useFontStore.persist.rehydrate();
+      else if (e.key === 'psysonic_keybindings') useKeybindingsStore.persist.rehydrate();
       else if (e.key === 'psysonic_language' && e.newValue) {
         import('./i18n').then(m => m.default.changeLanguage(e.newValue!));
       }

src/components/MiniPlayer.tsx

@@ -5,6 +5,7 @@ import { Play, Pause, SkipBack, SkipForward, Pin, PinOff, Maximize2, X, ListMusi
 import CachedImage from './CachedImage';
 import { buildCoverArtUrl, coverArtCacheKey } from '../api/subsonic';
 import { usePlayerStore } from '../store/playerStore';
+import { useKeybindingsStore, matchInAppBinding } from '../store/keybindingsStore';
 import { useDragDrop } from '../contexts/DragDropContext';
 import MiniContextMenu from './MiniContextMenu';
 import type { MiniSyncPayload, MiniControlAction, MiniTrackInfo } from '../utils/miniPlayerBridge';
@@ -178,11 +179,21 @@ export default function MiniPlayer() {
   }, [alwaysOnTop]);
 
   // Keyboard: Space → toggle, ← / → → prev / next. Ignore when typing.
+  // Also honour the user-configured 'open-mini-player' shortcut so the
+  // same chord that opens the mini from main also closes it from here.
   useEffect(() => {
     const onKey = (e: KeyboardEvent) => {
       const tgt = e.target as HTMLElement | null;
       const tag = tgt?.tagName;
       if (tag === 'INPUT' || tag === 'TEXTAREA' || tgt?.isContentEditable) return;
+
+      const openMiniBinding = useKeybindingsStore.getState().bindings['open-mini-player'];
+      if (matchInAppBinding(e, openMiniBinding)) {
+        e.preventDefault();
+        invoke('open_mini_player').catch(() => {});
+        return;
+      }
+
       if (e.key === ' ' || e.code === 'Space') {
         e.preventDefault();
         emit('mini:control', 'toggle').catch(() => {});

src/locales/de.ts

@@ -642,6 +642,7 @@ export const deTranslation = {
     shortcutOpenFolderBrowser: '{{folderBrowser}} öffnen',
     shortcutFullscreenPlayer: 'Vollbild-Player',
     shortcutNativeFullscreen: 'Nativer Vollbildmodus',
+    shortcutOpenMiniPlayer: 'Mini-Player öffnen',
     tabSystem: 'System',
     tabGeneral: 'Allgemein',
     ratingsSectionTitle: 'Bewertungen',

src/locales/en.ts

@@ -667,6 +667,7 @@ export const enTranslation = {
     shortcutOpenFolderBrowser: 'Open {{folderBrowser}}',
     shortcutFullscreenPlayer: 'Fullscreen player',
     shortcutNativeFullscreen: 'Native fullscreen',
+    shortcutOpenMiniPlayer: 'Open mini player',
     playbackTitle: 'Playback',
     replayGain: 'Replay Gain',
     replayGainDesc: 'Normalize track volume using ReplayGain metadata',

src/locales/es.ts

@@ -658,6 +658,7 @@ export const esTranslation = {
     shortcutOpenFolderBrowser: 'Abrir {{folderBrowser}}',
     shortcutFullscreenPlayer: 'Reproductor pantalla completa',
     shortcutNativeFullscreen: 'Pantalla completa nativa',
+    shortcutOpenMiniPlayer: 'Abrir mini reproductor',
     playbackTitle: 'Reproducción',
     replayGain: 'Replay Gain',
     replayGainDesc: 'Normalizar volumen de pistas usando metadatos ReplayGain',

src/locales/fr.ts

@@ -630,6 +630,7 @@ export const frTranslation = {
     shortcutOpenFolderBrowser: 'Ouvrir {{folderBrowser}}',
     shortcutFullscreenPlayer: 'Lecteur plein écran',
     shortcutNativeFullscreen: 'Plein écran natif',
+    shortcutOpenMiniPlayer: 'Ouvrir le mini-lecteur',
     tabSystem: 'Système',
     tabGeneral: 'Général',
     ratingsSectionTitle: 'Notes',

src/locales/nb.ts

@@ -652,6 +652,7 @@ export const nbTranslation = {
     shortcutOpenFolderBrowser: 'Åpne {{folderBrowser}}',
     shortcutFullscreenPlayer: 'Fullskjermsspiller',
     shortcutNativeFullscreen: 'Naturlig fullskjerm',
+    shortcutOpenMiniPlayer: 'Åpne minispiller',
     playbackTitle: 'Avspilling',
     replayGain: 'Replay Gain',
     replayGainDesc: 'Normaliser sporvolumet ved hjelp av ReplayGain-metadata',

src/locales/nl.ts

@@ -629,6 +629,7 @@ export const nlTranslation = {
     shortcutOpenFolderBrowser: '{{folderBrowser}} openen',
     shortcutFullscreenPlayer: 'Volledigschermspeler',
     shortcutNativeFullscreen: 'Systeemvolledig scherm',
+    shortcutOpenMiniPlayer: 'Mini-speler openen',
     tabSystem: 'Systeem',
     tabGeneral: 'Algemeen',
     ratingsSectionTitle: 'Beoordelingen',

src/locales/ru.ts

@@ -682,6 +682,7 @@ export const ruTranslation = {
     shortcutOpenFolderBrowser: 'Открыть {{folderBrowser}}',
     shortcutFullscreenPlayer: 'Полноэкранный плеер',
     shortcutNativeFullscreen: 'Системный полный экран',
+    shortcutOpenMiniPlayer: 'Открыть мини-плеер',
     playbackTitle: 'Воспроизведение',
     replayGain: 'Replay Gain',
     replayGainDesc: 'Выравнивание громкости по метаданным ReplayGain',

src/locales/zh.ts

@@ -648,6 +648,7 @@ export const zhTranslation = {
     shortcutOpenFolderBrowser: '打开{{folderBrowser}}',
     shortcutFullscreenPlayer: '全屏播放器',
     shortcutNativeFullscreen: '原生全屏',
+    shortcutOpenMiniPlayer: '打开迷你播放器',
     playbackTitle: '播放',
     replayGain: '回放增益',
     replayGainDesc: '使用 ReplayGain 元数据标准化曲目音量',

src/pages/Settings.tsx

@@ -2010,6 +2010,7 @@ export default function Settings() {
                 ['open-folder-browser', t('settings.shortcutOpenFolderBrowser', { folderBrowser: t('sidebar.folderBrowser') })],
                 ['fullscreen-player', t('settings.shortcutFullscreenPlayer')],
                 ['native-fullscreen', t('settings.shortcutNativeFullscreen')],
+                ['open-mini-player',  t('settings.shortcutOpenMiniPlayer')],
               ] as [KeyAction, string][]).map(([action, label]) => {
                 const bound = kb.bindings[action];
                 const isListening = listeningFor === action;

src/store/keybindingsStore.ts

@@ -12,7 +12,8 @@ export type KeyAction =
   | 'toggle-queue'
   | 'open-folder-browser'
   | 'fullscreen-player'
-  | 'native-fullscreen';
+  | 'native-fullscreen'
+  | 'open-mini-player';
 
 /** Physical keys only — ignore for binding capture */
 export const MODIFIER_KEY_CODES = [
@@ -35,6 +36,7 @@ export const DEFAULT_BINDINGS: Bindings = {
   'open-folder-browser': null,
   'fullscreen-player': null,
   'native-fullscreen': 'F11',
+  'open-mini-player':  null,
 };
 
 interface KeybindingsState {