fix(AddProfile): 修复头像显示问题并调整图片大小限制

将头像显示逻辑简化为使用默认头像当未设置时
调整图片上传大小限制从10MB降至5MB

@@ -3,8 +3,7 @@
         <!-- Avatar -->
         <view class="flex flex-col items-center py-8" @click="changeAvatar">
             <view class="w-24 h-24 rounded-full bg-gray-100 flex items-center justify-center mb-2 overflow-hidden">
-                <image v-if="formData.avatar_url" :src="formData.avatar_url" class="w-full h-full" mode="aspectFill" />
-                <My size="40" color="#888" v-else />
+                <image :src="formData.avatar_url || defaultAvatar" class="w-full h-full" mode="aspectFill" />
             </view>
             <text class="text-gray-500 text-sm">上传头像</text>
         </view>
@@ -85,8 +84,10 @@
 <script setup>
 import { ref, reactive, onMounted, computed } from 'vue';
 import Taro from '@tarojs/taro';
-import { My, Date as DateIcon, Right } from '@nutui/icons-vue-taro';
+import { Date as DateIcon, Right } from '@nutui/icons-vue-taro';
 import BASE_URL from '@/utils/config';
+// 默认头像
+const defaultAvatar = 'https://cdn.ipadbiz.cn/mlaj/images/icon_1.jpeg'
 
 /**
  * @description 表单数据
@@ -180,9 +181,9 @@ const changeAvatar = () => {
     sourceType: ['album', 'camera'],
     success: (res) => {
       const tempFile = res.tempFiles[0];
-      if (tempFile.size > 10 * 1024 * 1024) {
+      if (tempFile.size > 5 * 1024 * 1024) {
         Taro.showToast({
-          title: '图片大小不能超过10MB',
+          title: '图片大小不能超过5MB',
           icon: 'none',
         });
         return;