feat: 修改 400问题

studio/src/pages/trial/TrialSuitePanel.tsx

@@ -803,6 +803,12 @@ export default function TrialSuitePanel({ product, assets, onRefreshAssets }: Pr
             });
             const name = cleanFilename(img.name || img.key) || '生图结果';
             const suffix = (() => {
+                const mimeExt: Record<string, string> = {
+                    'image/jpeg': '.jpg', 'image/png': '.png', 'image/webp': '.webp',
+                    'image/gif': '.gif', 'image/bmp': '.bmp',
+                };
+                const fromMime = mimeExt[blob.type.split(';')[0].toLowerCase()];
+                if (fromMime) return fromMime;
                 try {
                     return new URL(img.url, window.location.origin).pathname.match(/\.(jpe?g|png|webp|gif|bmp)$/i)?.[0] ?? '.jpg';
                 } catch {

studio/src/services/api.ts

@@ -11,7 +11,17 @@ const apiClient: AxiosInstance = axios.create({
 
 apiClient.interceptors.response.use(
     (response) => response,
-    (error) => {
+    async (error) => {
+        // responseType: 'blob' 也会把 JSON 错误体包装成 Blob，先还原 detail。
+        const data = error.response?.data;
+        const contentType = error.response?.headers?.['content-type'] || data?.type || '';
+        if (data instanceof Blob && contentType.includes('json')) {
+            try {
+                error.response.data = JSON.parse(await data.text());
+            } catch {
+                // 保留原始响应，由调用方按普通请求错误处理。
+            }
+        }
         if (envConfig.debug) {
             console.error('请求失败:', error.response?.data || error.message);
         }