feat(sync): add option to delete imported chats when removing subscription

- Show confirmation dialog with two choices: keep data or delete imported chats
- Backend supports deleteData param across CLI routes and Electron IPC
- DataSourceManager.removeSession now returns the removed session info
- Add i18n strings for the delete confirmation dialog (zh-CN/en-US/ja-JP/zh-TW)

apps/cli/src/sync/index.ts

@@ -15,6 +15,7 @@ import { registerAutomationRoutes } from './routes'
 export interface SyncRouteContext {
   dsManager: DataSourceManager
   pullEngine: PullEngine
+  dbManager: DatabaseManager
   serverInfo: { port: number; host: string; token: string }
 }
 
@@ -49,7 +50,7 @@ export function initSync(
     logger: syncLogger,
   })
 
-  registerAutomationRoutes(server, { dsManager, pullEngine, serverInfo })
+  registerAutomationRoutes(server, { dsManager, pullEngine, dbManager, serverInfo })
 
   initScheduler({
     dsManager,

apps/cli/src/sync/routes.ts

@@ -15,7 +15,7 @@ import {
 import type { SyncRouteContext } from './index'
 
 export function registerAutomationRoutes(server: FastifyInstance, ctx: SyncRouteContext): void {
-  const { dsManager, pullEngine, serverInfo } = ctx
+  const { dsManager, pullEngine, dbManager, serverInfo } = ctx
 
   // ==================== Config (read-only in CLI mode) ====================
 
@@ -85,10 +85,17 @@ export function registerAutomationRoutes(server: FastifyInstance, ctx: SyncRoute
 
   server.delete<{
     Params: { id: string; sessId: string }
+    Querystring: { deleteData?: string }
   }>('/_web/automation/data-sources/:id/sessions/:sessId', async (request, reply) => {
-    const ok = dsManager.removeSession(request.params.id, request.params.sessId)
-    if (!ok) return reply.code(404).send({ error: 'Session not found' })
+    const removed = dsManager.removeSession(request.params.id, request.params.sessId)
+    if (!removed) return reply.code(404).send({ error: 'Session not found' })
     reloadTimer(request.params.id)
+    if (request.query.deleteData === 'true' && removed.targetSessionId) {
+      dbManager.close(removed.targetSessionId)
+      const dbPath = dbManager.getDbPath(removed.targetSessionId)
+      const fs = await import('node:fs')
+      if (fs.existsSync(dbPath)) fs.unlinkSync(dbPath)
+    }
     return { success: true }
   })
 
@@ -105,6 +112,12 @@ export function registerAutomationRoutes(server: FastifyInstance, ctx: SyncRoute
     return pullEngine.triggerPullAll(request.params.id)
   })
 
+  // ==================== Sync Progress ====================
+
+  server.get('/_web/automation/sync-progress', async () => {
+    return pullEngine.getProgress()
+  })
+
   // ==================== Remote Session Discovery ====================
 
   server.get<{