功能：接入乐玩开放平台双渠道路由，并修复渠道锁定与 Webhook 可靠性

在保持 DLC 默认零破坏的前提下，支持 priority/仅乐玩/仅 DLC 履约策略与后台 GUI 配置；同步补齐 Prepare 渠道落库、乐玩订单取消、Webhook 验签与失败重试。

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

frontend/src/api/index.ts

@@ -28,6 +28,9 @@ import type {
   User,
   WalletAccount,
   WalletLedgerEntry,
+  LewanProductListResult,
+  UpdateProductRoutingInput,
+  SyncLewanProductInput,
 } from '../types'
 
 export const authApi = {
@@ -231,3 +234,13 @@ export const platformApi = {
   reviewRechargeApplication: (id: number, data: { approved: boolean; review_note?: string }) =>
     request.post(`/platform/recharge/applications/${id}/review`, data).then((r) => r.data.data as RechargeApplication),
 }
+
+export const lewanApi = {
+  listProducts: (params?: { page?: number; size?: number; keyword?: string }) =>
+    request.get('/platform/lewan/products', { params }).then((r) => r.data.data as LewanProductListResult),
+  syncCatalog: (data: SyncLewanProductInput) =>
+    request.post('/platform/lewan/sync-catalog', data).then((r) => r.data.data as ProductCatalogItem),
+  updateRouting: (id: number, data: UpdateProductRoutingInput) =>
+    request.put(`/platform/products/${id}/routing`, data).then((r) => r.data.data as { updated: boolean }),
+}
+