fix: 修复头像和昵称同步更新问题

- mine.vue: 上传头像后正确处理URL
- account.vue: 加载用户信息时同步更新本地存储
- 确保我的页面和账号页面信息实时同步

xuan-deduct-uniapp/src/pages/mine/account.vue

@@ -86,11 +86,15 @@ export default {
           if (res.success && res.data) {
             this.userInfo = res.data
             
-            if (this.userInfo.avatarUrl && !this.userInfo.avatarUrl.startsWith('http') && !this.userInfo.avatarUrl.startsWith('wxfile://')) {
-              this.userInfo.avatarUrl = api.getBaseUrl().replace('/api', '') + this.userInfo.avatarUrl
+            let avatarUrl = this.userInfo.avatarUrl || ''
+            if (avatarUrl && !avatarUrl.startsWith('http') && !avatarUrl.startsWith('wxfile://')) {
+              avatarUrl = api.getBaseUrl().replace('/api', '') + avatarUrl
+              this.userInfo.avatarUrl = avatarUrl
             }
             
             uni.setStorageSync('userInfo', JSON.stringify(res.data))
+            uni.setStorageSync('userAvatar', avatarUrl)
+            uni.setStorageSync('username', this.userInfo.nickname || this.userInfo.username || '玄机用户')
           } else {
             this.userInfo = localUserInfo
           }

xuan-deduct-uniapp/src/pages/mine/mine.vue

@@ -262,13 +262,17 @@ export default {
             uni.hideLoading()
             
             if (uploadRes.success && uploadRes.data) {
-              this.avatar = uploadRes.data.avatarUrl || uploadRes.data
+              let avatarUrl = uploadRes.data.avatarUrl || uploadRes.data
+              if (avatarUrl && !avatarUrl.startsWith('http') && !avatarUrl.startsWith('wxfile://')) {
+                avatarUrl = api.getBaseUrl().replace('/api', '') + avatarUrl
+              }
+              this.avatar = avatarUrl
               uni.setStorageSync('userAvatar', this.avatar)
               
               const userInfoStr = uni.getStorageSync('userInfo')
               if (userInfoStr) {
                 const userInfo = JSON.parse(userInfoStr)
-                userInfo.avatarUrl = this.avatar
+                userInfo.avatarUrl = uploadRes.data.avatarUrl || uploadRes.data
                 uni.setStorageSync('userInfo', JSON.stringify(userInfo))
               }