fix: 渠道多选回显改用字符串类型匹配，解决 ID 显示问题

src/views/modules/member/detail.vue

@@ -115,7 +115,7 @@
             </el-form-item>
             <el-form-item label="渠道方" prop="channelIds">
               <el-select v-model="form.channelIds" multiple placeholder="请选择（可多选）" style="width: 100%;">
-                <el-option v-for="item in channelOptions" :key="item.id" :label="item.channelName" :value="item.id"></el-option>
+                <el-option v-for="item in channelOptions" :key="item.id" :label="item.channelName" :value="String(item.id)"></el-option>
               </el-select>
             </el-form-item>
             <el-form-item label="姓名" prop="realName">
@@ -253,7 +253,7 @@ export default {
         this.form.userLevel = res.data.userLevel || 1
         // channelIds 字符串转数组（用于多选回显）
         const ids = res.data.channelIds
-        this.form.channelIds = ids ? ids.split(',').map(id => Number(id.trim())).filter(Boolean) : []
+        this.form.channelIds = ids ? ids.split(',').map(id => id.trim()).filter(Boolean) : []
 
         this.userInfo = JSON.parse(JSON.stringify(res.data))
         this.userInfo.phoneCopy = this.userInfo.phone
@@ -284,7 +284,7 @@ export default {
         id: d.id,
         nickName: d.nickName || '',
         uniqueNo: d.uniqueNo || '',
-        channelIds: d.channelIds ? d.channelIds.split(',').map(id => Number(id.trim())).filter(Boolean) : [],
+        channelIds: d.channelIds ? d.channelIds.split(',').map(id => id.trim()).filter(Boolean) : [],
         realName: d.realName || '',
         idCard: d.idCard || '',
         welfareName: d.welfareName || '',