feat: 商家详情增加特约商家开关（可更换打手）

src/views/user/ShangjiaDetail.vue

@@ -26,6 +26,7 @@
               {{ merchant.zhuangtai === 1 ? '正常' : '已封禁' }}
             </el-tag>
             <el-tag v-if="merchant.is_youzhi_shangjia" type="warning" size="large" class="youzhi-tag">优质商家</el-tag>
+            <el-tag v-if="merchant.is_teyue_shangjia" type="success" size="large" class="youzhi-tag">特约商家</el-tag>
           </div>
           <div class="youzhi-row">
             <span>金牌商家</span>
@@ -35,6 +36,14 @@
               @change="handleYouzhiChange"
             />
           </div>
+          <div class="youzhi-row">
+            <span>特约商家（可更换打手）</span>
+            <el-switch
+              v-model="merchant.is_teyue_shangjia"
+              :loading="teyueSaving"
+              @change="handleTeyueChange"
+            />
+          </div>
           <div class="contact-info">
             <div v-if="merchant.dianhua"><el-icon><Phone /></el-icon> 电话：{{ merchant.dianhua }}</div>
             <div v-if="merchant.wechat"><el-icon><ChatDotRound /></el-icon> 微信：{{ merchant.wechat }}</div>
@@ -163,6 +172,7 @@ const merchant = ref(null)
 const loading = ref(false)
 const submitting = ref(false)
 const youzhiSaving = ref(false)
+const teyueSaving = ref(false)
 
 // 余额弹窗
 const balanceDialogVisible = ref(false)
@@ -316,6 +326,31 @@ const handleYouzhiChange = async (val) => {
   }
 }
 
+const handleTeyueChange = async (val) => {
+  teyueSaving.value = true
+  try {
+    const username = localStorage.getItem('username')
+    const res = await request.post('/houtai/xgsjxx', {
+      username,
+      yonghuid: merchantId,
+      action: 'set_teyue',
+      is_teyue_shangjia: val,
+    })
+    if (res.code === 0) {
+      ElMessage.success(res.msg || '设置成功')
+      merchant.value.is_teyue_shangjia = val
+    } else {
+      merchant.value.is_teyue_shangjia = !val
+      ElMessage.error(res.msg || '设置失败')
+    }
+  } catch (error) {
+    merchant.value.is_teyue_shangjia = !val
+    ElMessage.error('网络错误')
+  } finally {
+    teyueSaving.value = false
+  }
+}
+
 const handleBan = async () => {
   try {
     await ElMessageBox.confirm('确定封禁该商家？封禁后无法派单和登录。', '封禁确认', {