✨ feat: 优化歌词窗口交互和同步机制

- 增强歌词窗口数据同步逻辑，支持实时更新和状态管理
- 添加歌词窗口关闭事件监听和状态处理
- 优化无歌词时的默认提示和窗口行为
- 实现歌词窗口定时同步机制，提升用户体验
- 修复歌词窗口打开和关闭时的状态控制
- 国际化支持无歌曲播放时的提示文案

src/preload/index.d.ts

@@ -13,6 +13,7 @@ declare global {
       miniTray: () => void;
       restart: () => void;
       unblockMusic: (id: number, data: any) => Promise<any>;
+      onLyricWindowClosed: (callback: () => void) => void;
       startDownload: (url: string) => void;
       onDownloadProgress: (callback: (progress: number, status: string) => void) => void;
       onDownloadComplete: (callback: (success: boolean, filePath: string) => void) => void;

src/preload/index.ts

@@ -12,6 +12,10 @@ const api = {
   openLyric: () => ipcRenderer.send('open-lyric'),
   sendLyric: (data) => ipcRenderer.send('send-lyric', data),
   unblockMusic: (id) => ipcRenderer.invoke('unblock-music', id),
+  // 歌词窗口关闭事件
+  onLyricWindowClosed: (callback: () => void) => {
+    ipcRenderer.on('lyric-window-closed', () => callback());
+  },
   // 更新相关
   startDownload: (url: string) => ipcRenderer.send('start-download', url),
   onDownloadProgress: (callback: (progress: number, status: string) => void) => {