fix(ecommerce): replace base64 upload with binary blob in video service

runVideoPlan was passing blob URLs as "dataUrl" to uploadAssetWithProgress,
which sent them to /api/oss/upload (base64 path). Blob URLs don't match
DATA_URL_PATTERN regex, causing corrupt 44-byte files on OSS.

Now uses uploadAssetBinary (FormData multipart) via /api/oss/upload-binary,
fetching blob → uploading binary directly, same as EcommercePage path.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/features/ecommerce/ecommerceVideoService.ts

@@ -9,7 +9,6 @@ import {
   type AdVideoUserConfig,
 } from "../../api/adVideoPlanClient";
 import { aiGenerationClient } from "../../api/aiGenerationClient";
-import { uploadAssetWithProgress } from "../../api/uploadWithProgress";
 import { waitForTask } from "../../api/taskSubscription";
 import { resolveVideoRequestModel } from "../../utils/resolveVideoModel";
 import type {
@@ -34,12 +33,18 @@ export async function runVideoPlan(
 
   onStepStart("upload");
   const imageUrls: string[] = [];
-  for (const dataUrl of imageDataUrls) {
-    const result = await uploadAssetWithProgress(
-      { dataUrl, scope: "ecommerce-product", mimeType: "image/png" },
-      { signal },
-    );
+  const SUPPORTED_IMAGE_TYPES = new Set(["image/jpeg", "image/png", "image/webp", "image/gif"]);
+  for (const srcUrl of imageDataUrls) {
+    try {
+      const resp = await fetch(srcUrl);
+      const rawBlob = await resp.blob();
+      const mimeType = SUPPORTED_IMAGE_TYPES.has(rawBlob.type) ? rawBlob.type : "image/png";
+      const blob = rawBlob.type === mimeType ? rawBlob : new Blob([rawBlob], { type: mimeType });
+      const result = await aiGenerationClient.uploadAssetBinary(blob, { mimeType, scope: "ecommerce-product" });
       imageUrls.push(result.url);
+    } catch {
+      // skip images that fail to upload
+    }
   }
   onStepDone("upload");