feat: 支持同卡种续卡叠加并修复过期登录态

支付成功后将次数或有效期叠加到已有会员卡，首页与详情页引导续卡；接口 401 时同步清掉本地登录态。

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

packages/app/src/stores/user.ts

@@ -5,8 +5,13 @@ import type {
   UserStatsResponse,
   MembershipWithCardType,
 } from '@mp-pilates/shared'
-import { UserRole, MembershipStatus } from '@mp-pilates/shared'
+import {
+  UserRole,
+  MembershipStatus,
+  getMembershipRenewalHint,
+} from '@mp-pilates/shared'
 import { wxLogin, isLoggedIn, logout as authLogout } from '../utils/auth'
+import { setUnauthorizedHandler } from '../utils/session'
 import { get, put } from '../utils/request'
 import { ROUTES } from '../utils/routes'
 import { cacheSubscriptionMessageTemplateConfig, resetSubscriptionMessageTemplateCache } from '../utils/wechat-subscription'
@@ -32,6 +37,7 @@ export const useUserStore = defineStore('user', () => {
     memberships.value.filter((m) => m.status === MembershipStatus.ACTIVE),
   )
   const hasValidMembership = computed(() => activeMemberships.value.length > 0)
+  const renewalHint = computed(() => getMembershipRenewalHint(memberships.value))
   const inviteShareEligible = computed(() => !!user.value?.inviteShareEligible)
 
   // Actions
@@ -110,15 +116,21 @@ export const useUserStore = defineStore('user', () => {
     }
   }
 
-  function logout() {
-    authLogout()
-    resetSubscriptionMessageTemplateCache()
+  function clearSession() {
     token.value = ''
     user.value = null
     stats.value = null
     memberships.value = []
+    resetSubscriptionMessageTemplateCache()
   }
 
+  function logout() {
+    authLogout()
+    clearSession()
+  }
+
+  setUnauthorizedHandler(clearSession)
+
   return {
     user,
     stats,
@@ -129,6 +141,7 @@ export const useUserStore = defineStore('user', () => {
     isAdmin,
     activeMemberships,
     hasValidMembership,
+    renewalHint,
     inviteShareEligible,
     login,
     loginWithSetup,