feat: 统一IM后台商户文案和默认选择

web/src/views/imFeedbackConfig/index.vue

@@ -11,11 +11,11 @@
         label-placement="left"
         label-width="120"
       >
-        <n-form-item v-if="isPlatformAdmin" label="租户">
+        <n-form-item v-if="isPlatformAdmin" label="商户">
           <n-select
             v-model:value="selectedTenantId"
             :options="tenantOptions"
-            placeholder="请选择租户"
+            placeholder="请选择商户"
             @update:value="loadConfig"
           />
         </n-form-item>
@@ -133,7 +133,7 @@
     if (isPlatformAdmin.value) {
       await loadTenantOptions();
       if (tenantOptions.value.length > 0) selectedTenantId.value = tenantOptions.value[0].value;
-      else message.warning('暂无可用租户');
+      else message.warning('暂无可用商户');
     }
     await loadConfig();
   });