fix: 统一上传响应与表单校验处理

- 上传组件统一解析后端响应并暴露错误事件

- AI 资源、模型提供商和工作流表单补齐程序化字段校验同步

- 修正 MinIO 对外访问域名配置

easyflow-ui-admin/app/src/components/upload/DragFileUpload.vue

@@ -7,7 +7,9 @@ import { useAppConfig } from '@easyflow/hooks';
 import { useAccessStore } from '@easyflow/stores';
 
 import { UploadFilled } from '@element-plus/icons-vue';
-import { ElIcon, ElUpload } from 'element-plus';
+import { ElIcon, ElMessage, ElUpload } from 'element-plus';
+
+import { normalizeUploadError, resolveUploadPath } from '#/utils/upload-response';
 
 const props = defineProps({
   action: {
@@ -20,7 +22,7 @@ const props = defineProps({
   },
 });
 
-const emit = defineEmits(['success', 'onChange']);
+const emit = defineEmits(['success', 'error', 'onChange']);
 const accessStore = useAccessStore();
 const headers = ref({
   'easyflow-token': accessStore.accessToken,
@@ -32,7 +34,18 @@ const uploadRef = ref<InstanceType<typeof ElUpload>>();
 
 // 上传成功回调
 const handleSuccess: UploadProps['onSuccess'] = (response) => {
-  emit('success', response.data.path);
+  try {
+    emit('success', resolveUploadPath(response));
+  } catch (error) {
+    const normalizedError = normalizeUploadError(error);
+    ElMessage.error(normalizedError.message);
+    emit('error', normalizedError);
+  }
+};
+const handleError: UploadProps['onError'] = (error) => {
+  const normalizedError = normalizeUploadError(error);
+  ElMessage.error(normalizedError.message);
+  emit('error', normalizedError);
 };
 
 // 文件状态变化回调
@@ -66,6 +79,7 @@ defineExpose({
     :headers="headers"
     :action="`${apiURL}${props.action}`"
     :on-success="handleSuccess"
+    :on-error="handleError"
     :on-change="handleChange"
     multiple
     :style="{ display: props.visible ? 'block' : 'none' }"