feat(profile): 页面显示时自动填充用户信息

- 新增从后端获取用户信息并填充表单的功能
- 实现页面显示时自动调用用户信息拉取逻辑
- 支持处理用户头像、昵称、手机号、年龄等字段
- 添加性别字段的多种格式兼容处理
- 实现地址字段的智能分割与填充
- 增加请求失败和未授权时的错误处理机制

src/pages/profile/complete-info.vue

@@ -72,6 +72,7 @@
 
 <script setup lang="ts">
 import { ref } from 'vue'
+import { onShow } from '@dcloudio/uni-app'
 import CustomNav from '@/components/CustomNav.vue'
 
 const form = ref({
@@ -88,6 +89,64 @@ const submitting = ref(false)
 const isChoosing = ref(false)
 const gettingLocation = ref(false)
 
+// 从后端拉取已有用户信息并填充表单
+const fetchUserInfo = async () => {
+  try {
+    const token = uni.getStorageSync('token')
+    if (!token) return
+    uni.showLoading({ title: '加载中...' })
+    const response = await uni.request({
+      url: 'https://wx.baiyun.work/user_info',
+      method: 'POST',
+      header: {
+        'Content-Type': 'application/json',
+        'Authorization': `Bearer ${token}`
+      },
+      data: {}
+    })
+    uni.hideLoading()
+    console.log('fetchUserInfo response:', response)
+    if (response.statusCode === 401) {
+      // 未授权，跳转登录
+      uni.removeStorageSync('token')
+      uni.reLaunch({ url: '/pages/login/login' })
+      return
+    }
+    const resp = response.data as any
+    if (resp && resp.code === 200 && resp.data) {
+      const d = resp.data
+      // 填充基本字段
+      form.value.avatar = d.avatar || form.value.avatar
+      form.value.nickname = d.nickname || form.value.nickname
+      form.value.phone = d.phone || form.value.phone
+      form.value.age = d.age || form.value.age
+      // sex 可能为 'MALE'/'FEMALE' 或数字/1/2
+      if (d.sex) {
+        if (typeof d.sex === 'string') {
+          const s = d.sex.toUpperCase()
+          form.value.sex = s === 'MALE' ? 1 : s === 'FEMALE' ? 2 : form.value.sex
+        } else if (typeof d.sex === 'number') {
+          form.value.sex = d.sex
+        }
+      }
+      // address 可能为 '重庆市 重庆市' 或包含空格，用空格或中文空格分割
+      if (d.address) {
+        const parts = String(d.address).split(/\s+/).filter(Boolean)
+        region.value = parts
+        form.value.address = parts.join(' ')
+      }
+    }
+  } catch (err) {
+    uni.hideLoading()
+    console.error('fetchUserInfo error:', err)
+  }
+}
+
+// 在页面显示时尝试填充
+onShow(() => {
+  fetchUserInfo()
+})
+
 
 const onChooseAvatar = (e: any) => {
   console.log('onChooseAvatar called with event:', e)