refactor: 清理死代码与构建加固

src/renderer/utils.js

@@ -1,3 +0,0 @@
-// 渲染器工具模块（SDK 内 `@renderer/utils` 别名目标）
-
-export { decodeName, formatPlayTime, sizeFormate, dateFormat, dateFormat2, formatPlayCount } from '../common/utils.js'

src/routes.js

@@ -93,7 +93,7 @@ export const musicRoutes = async(fastify) => {
 
     const lists = await Promise.all(
       musicSdk.sources
-        .filter(s => s.id !== 'xm' && musicSdk[s.id]?.musicSearch)
+        .filter(s => musicSdk[s.id]?.musicSearch)
         .map(s => doSearch(s.id).catch(() => [])),
     )
     return { source: 'all', list: lists.flat(), page, limit }