refactor(fulfillment): 移除飞飞/乐玩通道，仅保留 affiliate_dash

新单只路由 affiliate_dash（未命中走 manual_dispatch）；历史飞飞/乐玩任务保留只读 stub，避免订单重同步失败。同步清理 cloudtentacles 调度、Admin 写路径与相关 env。

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/backend/src/routes/admin.ts

@@ -2,7 +2,6 @@ import { Router } from 'express'
 
 import authRouter from './admin/auth.js'
 import auditLogsRouter from './admin/audit-logs.js'
-import cloudtentaclesRecordsRouter from './admin/cloudtentacles-records.js'
 import dashboardRouter from './admin/dashboard.js'
 import devMockRouter from './admin/dev-mock.js'
 import financeRouter from './admin/finance.js'
@@ -35,7 +34,6 @@ router.use(ordersRouter)
 router.use(notificationsRouter)
 router.use(realtimeRouter)
 router.use(tasksRouter)
-router.use(cloudtentaclesRecordsRouter)
 router.use(workerPlatformRouter)
 router.use(devMockRouter)