修复开启应用锁时更新公告弹窗无法关闭的bug #291；修复朋友圈时间排序错乱 #290；支持日期选择器快速跳转年月；朋友圈页面性能优化

src/types/electron.d.ts

@@ -503,6 +503,7 @@ export interface ElectronAPI {
     }) => Promise<{ success: boolean; filePath?: string; postCount?: number; mediaCount?: number; error?: string }>
     onExportProgress: (callback: (payload: { current: number; total: number; status: string }) => void) => () => void
     selectExportDir: () => Promise<{ canceled: boolean; filePath?: string }>
+    getSnsUsernames: () => Promise<{ success: boolean; usernames?: string[]; error?: string }>
   }
   llama: {
     loadModel: (modelPath: string) => Promise<boolean>