反爬虫优化，评论图片支持

app/api/fetcher/uploader.ts

@@ -1,3 +1,5 @@
+export const runtime = 'nodejs'
+
 import type { BrowserContext } from 'playwright';
 import { uploadFile, generateUniqueFileName } from '@/lib/minio';
 import { downloadBinary } from './network';
@@ -10,7 +12,7 @@ import { getVideoDuration } from './media';
 export async function uploadAvatarFromUrl(
     context: BrowserContext,
     srcUrl?: string | null,
-    nameHint?: string
+    nameHint?: string,
 ): Promise<string | undefined> {
     if (!srcUrl) return undefined;
     try {
@@ -26,6 +28,28 @@ export async function uploadAvatarFromUrl(
     }
 }
 
+/**
+ * 下载任意图片并上传到 MinIO，返回外链；失败时回退为原始链接。
+ */
+export async function uploadImageFromUrl(
+    context: BrowserContext,
+    srcUrl?: string | null,
+    nameHint?: string,
+): Promise<string | undefined> {
+    if (!srcUrl) return undefined;
+    try {
+        const { buffer, contentType, ext } = await downloadBinary(context, srcUrl);
+        const safeExt = ext || 'jpg';
+        const baseName = nameHint ? `${nameHint}.${safeExt}` : `image.${safeExt}`;
+        const fileName = generateUniqueFileName(baseName, 'douyin/comment-images');
+        const uploaded = await uploadFile(buffer, fileName, { 'Content-Type': contentType });
+        return uploaded;
+    } catch (e) {
+        console.warn('[image] 上传失败，使用原始链接：', (e as Error)?.message || e);
+        return srcUrl || undefined;
+    }
+}
+
 /** 下载图文作品的图片和音乐并上传到 MinIO */
 export async function handleImagePost(
     context: BrowserContext,