feat(player): queue undo/redo with hotkeys and playback-aware restore

Snapshot queue, current track, time, and pause before queue mutations.
Ctrl+Z/Cmd+Z restores prior state; Ctrl+Shift+Z/Cmd+Shift+Z reapplies undone
edits when the redo stack is non-empty; new edits clear redo.

Resync the Rust audio engine only when the current song identity changes
from the pre-apply state so reorder/enqueue-style edits keep live playback.

Register the document capture listener from main.tsx after the window label
is set. Mini player forwards undo/redo via mini:undo-queue and mini:redo-queue.

src/App.tsx

@@ -93,7 +93,13 @@ import { initHotCachePrefetch } from './hotCachePrefetch';
 import i18n from './i18n';
 import { playByOpaqueId } from './utils/playByOpaqueId';
 import { switchActiveServer } from './utils/switchActiveServer';
-import { usePlayerStore, initAudioListeners, songToTrack, shuffleArray, flushPlayQueuePosition } from './store/playerStore';
+import {
+  usePlayerStore,
+  initAudioListeners,
+  songToTrack,
+  shuffleArray,
+  flushPlayQueuePosition,
+} from './store/playerStore';
 import { useThemeStore } from './store/themeStore';
 import { useThemeScheduler } from './hooks/useThemeScheduler';
 import { useFontStore } from './store/fontStore';
@@ -858,8 +864,10 @@ function TauriEventBridge() {
   // Configurable keybindings
   useEffect(() => {
     const onKey = (e: KeyboardEvent) => {
-      const tag = (e.target as HTMLElement)?.tagName;
-      if (tag === 'INPUT' || tag === 'TEXTAREA' || tag === 'SELECT') return;
+      const el = e.target as HTMLElement;
+      const tag = el?.tagName;
+      const editable = Boolean(el?.isContentEditable);
+      if (tag === 'INPUT' || tag === 'TEXTAREA' || tag === 'SELECT' || editable) return;
 
       const chord = buildInAppBinding(e);
       if (chord) {