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

server/src/utils/weixin.js

@@ -146,7 +146,7 @@ class WeChatService {
       out_trade_no: orderNo,
       notify_url: this.notifyUrl,
       amount: {
-        total: Math.round(amount * 100), // 转换为分
+        total: Math.round(amount), // 金额单位已为分
         currency: 'CNY'
       },
       payer: {
@@ -184,6 +184,56 @@ class WeChatService {
     }
   }
   
+  /**
+   * 创建H5支付订单（微信H5支付/MWEB）
+   * @param {Object} orderData - { orderNo, body, amount, clientIp, appId }
+   */
+  async createH5PaymentOrder(orderData) {
+    const { orderNo, body, amount, clientIp, appId } = orderData
+    
+    const nonceStr = this.generateNonceStr()
+    const timestamp = Math.floor(Date.now() / 1000).toString()
+    
+    // 1. 统一下单 (H5 / MWEB)
+    const url = '/v3/pay/transactions/h5'
+    const fullUrl = `https://api.mch.weixin.qq.com${url}`
+    
+    const orderParams = {
+      appid: appId || this.appId,
+      mchid: this.mchId,
+      description: body,
+      out_trade_no: orderNo,
+      notify_url: this.notifyUrl,
+      amount: {
+        total: Math.round(amount), // 金额单位已为分
+        currency: 'CNY'
+      },
+      scene_info: {
+        h5_info: {
+          type: 'Wap',
+          client_ip: clientIp
+        }
+      }
+    }
+    
+    // 模拟返回 h5_url (生产环境需调用真实微信支付接口)
+    // 实际生产调用示例:
+    // const sign = this.generateSign('POST', url, timestamp, nonceStr, JSON.stringify(orderParams))
+    // const response = await axios.post(fullUrl, orderParams, {
+    //   headers: { 'Authorization': `WECHATPAY2-SHA256-RSA2048 ${sign}` }
+    // })
+    // const h5Url = response.data.h5_url
+    
+    // 模拟 H5 支付链接（生产环境由微信返回真实 MWEB_URL）
+    const mockH5Url = `https://wx.tenpay.com/cgi-bin/mmpayweb-bin/checkmweb?prepay_id=wx_mock_${Date.now()}&package=mock_${Date.now()}`
+    
+    return {
+      h5Url: mockH5Url,
+      orderNo,
+      amount: Math.round(amount)
+    }
+  }
+  
   /**
    * 申请退款
    */