refactor(xumu): 优化体重录入对话框样式和功能

- 调整对话框宽度为 50vw，提高可读性和美观性
- 为日期选择器添加 value-format 属性，确保日期格式一致性
- 将普通输入框替换为自定义的 ai-input 组件，提升用户体验

project/xumu/AppWeightManage/add.vue

@@ -122,13 +122,13 @@ export default {
           </el-table-column>
         </ai-table>
       </ai-card>
-      <ai-dialog v-model="dialog" title="体重录入" @closed="form={}" @confirm="submit">
+      <ai-dialog v-model="dialog" title="体重录入" @closed="form={}" @confirm="submit" width="50vw">
         <el-form size="small" label-width="120px" :model="form" ref="detail" class="grid">
           <el-form-item label="办理时间" prop="createTime" :rules="[{required:true,message:'请选择办理时间'}]">
-            <el-date-picker v-model="form.createTime" :readonly="form.id"/>
+            <el-date-picker v-model="form.createTime" :readonly="form.id" value-format="yyyy-MM-dd HH:mm:ss"/>
           </el-form-item>
           <el-form-item label="体重(公斤)" prop="weight" :rules="[{required:true,message:'请输入体重(公斤)'}]">
-            <el-input v-model.number="form.weight" clearable placeholder="请输入"/>
+            <ai-input v-model.number="form.weight"/>
           </el-form-item>
         </el-form>
       </ai-dialog>