fix(本地音乐): 扫描阶段直接使用mtime做增量判断

src/preload/index.d.ts

@@ -30,6 +30,10 @@ interface API {
   lxMusicHttpCancel: (requestId: string) => Promise<void>;
   /** 扫描指定文件夹中的本地音乐文件 */
   scanLocalMusic: (folderPath: string) => Promise<{ files: string[]; count: number }>;
+  /** 扫描指定文件夹中的本地音乐文件（包含修改时间） */
+  scanLocalMusicWithStats: (
+    folderPath: string
+  ) => Promise<{ files: { path: string; modifiedTime: number }[]; count: number }>;
   /** 批量解析本地音乐文件元数据 */
   parseLocalMusicMetadata: (
     filePaths: string[]

src/preload/index.ts

@@ -54,6 +54,7 @@ const api = {
       'cache-lyric',
       'clear-lyric-cache',
       'scan-local-music',
+      'scan-local-music-with-stats',
       'parse-local-music-metadata'
     ];
     if (validChannels.includes(channel)) {
@@ -72,6 +73,8 @@ const api = {
 
   // 本地音乐扫描相关
   scanLocalMusic: (folderPath: string) => ipcRenderer.invoke('scan-local-music', folderPath),
+  scanLocalMusicWithStats: (folderPath: string) =>
+    ipcRenderer.invoke('scan-local-music-with-stats', folderPath),
   parseLocalMusicMetadata: (filePaths: string[]) =>
     ipcRenderer.invoke('parse-local-music-metadata', filePaths)
 };