feat: 微信分享钩子全页面接入 + 订阅信息结构化映射 + JWT 错误处理加强

- client: 全部页面接入 onShareAppMessage/onShareTimeline 分享钩子
- client: login 页增强、profile 订阅展示优化
- client/stores: 订阅字段扁平结构映射为 subInfo（plan/expiresAt/startDate）
- server: auth 路由 JWT 无效/过期统一返回 401 未授权响应
- server: models/tests 同步更新

client/src/pages/achievements/achievements.vue

@@ -76,6 +76,8 @@
 </template>
 
 <script setup>
+import { onShareAppMessage, onShareTimeline } from '@dcloudio/uni-app'
+
 import { ref, computed, onMounted } from 'vue'
 import { userApi } from '@/utils/api'
 import { useUserStore } from '@/stores/user'
@@ -113,8 +115,7 @@ const progressPercent = computed(() => {
 
 onMounted(() => {
   if (!userStore.isLoggedIn) {
-    uni.showToast({ title: '请先登录', icon: 'none' })
-    uni.navigateTo({ url: '/pages/login/login' })
+    loading.value = false
     return
   }
   loadAchievements()
@@ -158,10 +159,12 @@ function formatDate(dateStr) {
 }
 
 // 微信小程序分享
+// #ifdef MP-WEIXIN
 onShareAppMessage(() => ({
   title: 'AI 维度 - 你的AI知识助手',
   path: '/pages/index/index'
 }))
+// #endif
 </script>
 
 <style lang="scss" scoped>