Merge branch 'develop' into refactor/subscription-api

将 106 行的 subscription.ts 拆分为目录化结构：
- types.ts: 类型定义（Plan/SubscriptionInfo/BillingRecord 等）
- subscription.ts: 全部 5 个 API 函数
- index.ts: 统一入口 re-export，保持 @/api/subscription 路径向后兼容

apps/web/src/api/subscription/index.ts

@@ -0,0 +1,26 @@
+/**
+ * 订阅 API — 目录化入口
+ * 保持与原 subscription.ts 相同导出，向后兼容
+ */
+
+// 类型
+export type {
+  PlanType,
+  SubscriptionStatus,
+  BillingStatus,
+  BillingCycle,
+  Plan,
+  SubscriptionInfo,
+  BillingRecord,
+  ChangePlanRequest,
+  ChangePlanResponse,
+} from "./types"
+
+// API 函数
+export {
+  getCurrentSubscription,
+  getBillingRecords,
+  changePlan,
+  cancelSubscription,
+  toggleAutoRenew,
+} from "./subscription"

apps/web/src/api/subscription/subscription.ts

@@ -0,0 +1,47 @@
+/**
+ * 订阅相关 API 函数
+ */
+import apiClient from "../client"
+import type {
+  BillingRecord,
+  ChangePlanRequest,
+  ChangePlanResponse,
+  SubscriptionInfo,
+} from "./types"
+
+/** 获取当前订阅信息 */
+export const getCurrentSubscription = async (): Promise<SubscriptionInfo> => {
+  const response = await apiClient.get("/subscription/current")
+  return response.data
+}
+
+/** 获取账单记录列表 */
+export const getBillingRecords = async (): Promise<BillingRecord[]> => {
+  const response = await apiClient.get("/subscription/billing-records")
+  return response.data
+}
+
+/** 升级/降级套餐 */
+export const changePlan = async (request: ChangePlanRequest): Promise<ChangePlanResponse> => {
+  const response = await apiClient.post("/subscription/change-plan", request)
+  return response.data
+}
+
+/** 取消订阅 */
+export const cancelSubscription = async (): Promise<{
+  success: boolean
+  message: string
+}> => {
+  const response = await apiClient.post("/subscription/cancel")
+  return response.data
+}
+
+/** 切换自动续费 */
+export const toggleAutoRenew = async (
+  enabled: boolean,
+): Promise<{ success: boolean; message: string }> => {
+  const response = await apiClient.post("/subscription/toggle-auto-renew", {
+    enabled,
+  })
+  return response.data
+}

apps/web/src/api/subscription/types.ts

@@ -1,8 +1,6 @@
 /**
- * 订阅 API 模块
- * 对接后端订阅管理接口
+ * 订阅相关类型定义
  */
-import apiClient from "./client"
 
 /** 套餐类型 */
 export type PlanType = "free" | "standard" | "pro" | "enterprise"
@@ -65,42 +63,3 @@ export interface ChangePlanResponse {
   message: string
   new_subscription?: SubscriptionInfo
 }
-
-// ============ API 函数 ============
-
-/** 获取当前订阅信息 */
-export const getCurrentSubscription = async (): Promise<SubscriptionInfo> => {
-  const response = await apiClient.get("/subscription/current")
-  return response.data
-}
-
-/** 获取账单记录列表 */
-export const getBillingRecords = async (): Promise<BillingRecord[]> => {
-  const response = await apiClient.get("/subscription/billing-records")
-  return response.data
-}
-
-/** 升级/降级套餐 */
-export const changePlan = async (request: ChangePlanRequest): Promise<ChangePlanResponse> => {
-  const response = await apiClient.post("/subscription/change-plan", request)
-  return response.data
-}
-
-/** 取消订阅 */
-export const cancelSubscription = async (): Promise<{
-  success: boolean
-  message: string
-}> => {
-  const response = await apiClient.post("/subscription/cancel")
-  return response.data
-}
-
-/** 切换自动续费 */
-export const toggleAutoRenew = async (
-  enabled: boolean,
-): Promise<{ success: boolean; message: string }> => {
-  const response = await apiClient.post("/subscription/toggle-auto-renew", {
-    enabled,
-  })
-  return response.data
-}