feat(export): add text batch task performance breakdown

electron/preload.ts

@@ -276,7 +276,7 @@ contextBridge.exposeInMainWorld('electronAPI', {
       ipcRenderer.invoke('export:pauseTask', taskId),
     stopTask: (taskId: string) =>
       ipcRenderer.invoke('export:stopTask', taskId),
-    onProgress: (callback: (payload: { current: number; total: number; currentSession: string; phase: string }) => void) => {
+    onProgress: (callback: (payload: { current: number; total: number; currentSession: string; currentSessionId?: string; phase: string }) => void) => {
       ipcRenderer.on('export:progress', (_, payload) => callback(payload))
       return () => ipcRenderer.removeAllListeners('export:progress')
     }

electron/services/exportService.ts

@@ -108,6 +108,7 @@ export interface ExportProgress {
   current: number
   total: number
   currentSession: string
+  currentSessionId?: string
   phase: 'preparing' | 'exporting' | 'exporting-media' | 'exporting-voice' | 'writing' | 'complete'
   phaseProgress?: number
   phaseTotal?: number
@@ -5299,7 +5300,8 @@ class ExportService {
             ...progress,
             current: completedCount,
             total: sessionIds.length,
-            currentSession: sessionInfo.displayName
+            currentSession: sessionInfo.displayName,
+            currentSessionId: sessionId
           })
         }
 
@@ -5411,6 +5413,7 @@ class ExportService {
         current: sessionIds.length,
         total: sessionIds.length,
         currentSession: '',
+        currentSessionId: '',
         phase: 'complete'
       })