feat: 增强智能体模型调用兼容能力

- 增加模型流式开关和 HTTP 传输策略配置

- 使用 AgentScope 执行基础连接、流式与 VLM 双阶段验证

- 固定多模态校验图片并统一验证状态展示

easyflow-ui-admin/app/src/views/ai/model/modelUtils/model-verification.ts

@@ -0,0 +1,75 @@
+import type { ModelVerificationData } from '#/api/ai/llm';
+
+export type VerifyButtonStatus =
+  | 'error'
+  | 'idle'
+  | 'loading'
+  | 'success'
+  | 'warning';
+
+export interface ModelVerificationFeedback {
+  dimension?: number;
+  message: string;
+  status: 'error' | 'success' | 'warning';
+}
+
+interface ModelVerificationResponse {
+  data?: ModelVerificationData;
+  errorCode: number;
+  message?: string;
+}
+
+const STREAMING_UNAVAILABLE_MESSAGE =
+  '连接成功，流式响应不可用，可关闭智能体的模型流式响应。';
+
+export function resolveModelVerificationFeedback(
+  response: ModelVerificationResponse,
+  modelType: string,
+): ModelVerificationFeedback {
+  if (response.errorCode !== 0) {
+    return {
+      message: response.message || '验证失败',
+      status: 'error',
+    };
+  }
+
+  if (response.data?.status === 'PARTIAL') {
+    return {
+      message: response.data.message || STREAMING_UNAVAILABLE_MESSAGE,
+      status: 'warning',
+    };
+  }
+
+  if (response.data?.status === 'FAILED') {
+    return {
+      message: response.data.message || '验证失败',
+      status: 'error',
+    };
+  }
+
+  const dimension = response.data?.dimension;
+  return {
+    dimension,
+    message:
+      modelType === 'embeddingModel' && dimension
+        ? `验证成功，向量维度：${dimension}`
+        : response.data?.message || '验证成功',
+    status: 'success',
+  };
+}
+
+export function getVerifyButtonText(status: VerifyButtonStatus): string {
+  if (status === 'loading') {
+    return '验证中';
+  }
+  if (status === 'success') {
+    return '验证成功';
+  }
+  if (status === 'warning') {
+    return '流式不可用';
+  }
+  if (status === 'error') {
+    return '验证失败';
+  }
+  return '验证配置';
+}