refactor(player): 提取播放栏共享逻辑为 composable

- 新增 useVolumeControl：统一音量管理（volumeSlider、mute、滚轮调节）
- 新增 useFavorite：收藏状态与切换
- 新增 usePlaybackControl：播放/暂停、上/下一首
- PlayBar、MiniPlayBar、SimplePlayBar、MobilePlayBar 使用新 composable
- 修复音量存储不一致：MiniPlayBar/SimplePlayBar 原先绕过 playerStore 直接操作 localStorage

src/renderer/hooks/useFavorite.ts

@@ -0,0 +1,35 @@
+import { computed } from 'vue';
+
+import { playMusic } from '@/hooks/MusicHook';
+import { usePlayerStore } from '@/store/modules/player';
+
+/**
+ * 当前歌曲的收藏状态管理 composable
+ */
+export function useFavorite() {
+  const playerStore = usePlayerStore();
+
+  /** 当前歌曲是否已收藏 */
+  const isFavorite = computed(() => {
+    if (!playMusic?.value?.id) return false;
+    return playerStore.favoriteList.includes(playMusic.value.id);
+  });
+
+  /** 切换收藏状态 */
+  const toggleFavorite = (e?: Event) => {
+    e?.stopPropagation();
+    if (!playMusic?.value?.id) return;
+
+    const favoriteId = playMusic.value.id;
+    if (isFavorite.value) {
+      playerStore.removeFromFavorite(favoriteId);
+    } else {
+      playerStore.addToFavorite(favoriteId);
+    }
+  };
+
+  return {
+    isFavorite,
+    toggleFavorite
+  };
+}