fix:修复了导出时因为头像在后台加载导致的不导出的问题

src/types/electron.d.ts

@@ -314,6 +314,7 @@ export interface ElectronAPI {
       success: boolean
       error?: string
     }>
+    onProgress: (callback: (payload: ExportProgress) => void) => () => void
   }
   whisper: {
     downloadModel: () => Promise<{ success: boolean; modelPath?: string; tokensPath?: string; error?: string }>
@@ -334,6 +335,13 @@ export interface ExportOptions {
   excelCompactColumns?: boolean
 }
 
+export interface ExportProgress {
+  current: number
+  total: number
+  currentSession: string
+  phase: 'preparing' | 'exporting' | 'writing' | 'complete'
+}
+
 export interface WxidInfo {
   wxid: string
   modifiedTime: number