fix: upload-binary Content-Type fix, 429/timeout retry, 120s timeout - Remove Content-Type: application/json from uploadAssetBinary FormData request - Add retryOnTransient for 429 + timeout + signal timed out errors - Increase AI chat timeout from 60s to 120s per call - Apply retry logic to both chat() and visionChat()

src/api/adVideoPlanClient.ts

@@ -108,16 +108,42 @@ interface ChatMessage {
   content: string;
 }
 
+const MAX_RETRIES = 3;
+const RETRY_BASE_MS = 2000;
+const CHAT_TIMEOUT_MS = 120_000; // 2 minutes per AI call
+
+function isTransientError(err: unknown): boolean {
+  if (!(err instanceof Error)) return false;
+  const msg = err.message.toLowerCase();
+  return /\b429\b/.test(msg) || msg.includes("signal timed out") || msg.includes("aborted") || msg.includes("timeout");
+}
+
+async function retryOnTransient<T>(fn: () => Promise<T>, signal?: AbortSignal): Promise<T> {
+  for (let attempt = 0; attempt <= MAX_RETRIES; attempt++) {
+    try {
+      return await fn();
+    } catch (err) {
+      if (signal?.aborted) throw err;
+      if (attempt === MAX_RETRIES) throw err;
+      if (!isTransientError(err)) throw err;
+      const delay = RETRY_BASE_MS * 2 ** attempt + Math.random() * 1000;
+      await new Promise((r) => setTimeout(r, delay));
+    }
+  }
+  throw new Error("unreachable");
+}
+
 async function chat(
   systemPrompt: string,
   userContent: string,
   options?: { model?: string; signal?: AbortSignal },
 ): Promise<string> {
+  return retryOnTransient(async () => {
     const messages: ChatMessage[] = [
       { role: "system", content: systemPrompt },
       { role: "user", content: userContent },
     ];
-  const timeoutSignal = AbortSignal.timeout(60000);
+    const timeoutSignal = AbortSignal.timeout(CHAT_TIMEOUT_MS);
     const combinedSignal = options?.signal
       ? AbortSignal.any([options.signal, timeoutSignal])
       : timeoutSignal;
@@ -138,6 +164,7 @@ async function chat(
       payload?.content ?? payload?.choices?.[0]?.message?.content ?? payload?.text ?? "";
     if (!content) throw new Error("模型未返回有效内容");
     return content;
+  }, options?.signal);
 }
 
 async function visionChat(
@@ -156,11 +183,12 @@ async function visionChat(
   ];
 
   for (const model of [VISION_MODEL, VISION_FALLBACK_MODEL]) {
-    const timeoutSignal = AbortSignal.timeout(60000);
+    const timeoutSignal = AbortSignal.timeout(CHAT_TIMEOUT_MS);
     const combinedSignal = signal
       ? AbortSignal.any([signal, timeoutSignal])
       : timeoutSignal;
     try {
+      const out = await retryOnTransient(async () => {
         const res = await fetch(buildApiUrl("ai/chat"), {
           method: "POST",
           headers: buildAuthHeaders(),
@@ -169,15 +197,18 @@ async function visionChat(
         });
         if (!res.ok) {
           const errBody = await res.text().catch(() => "");
-        if (model === VISION_MODEL && errBody.includes("image format")) continue;
+          if (model === VISION_MODEL && errBody.includes("image format")) throw new Error("IMAGE_FORMAT_FALLBACK");
           throw new Error(`图片理解调用失败 (${res.status})`);
         }
         const payload = await res.json();
-      const out: string =
+        const result: string =
           payload?.content ?? payload?.choices?.[0]?.message?.content ?? payload?.text ?? "";
-      if (!out) throw new Error("图片理解未返回有效内容");
+        if (!result) throw new Error("图片理解未返回有效内容");
+        return result;
+      }, signal);
       return out;
     } catch (err) {
+      if (err instanceof Error && err.message === "IMAGE_FORMAT_FALLBACK") continue;
       if (model === VISION_MODEL && err instanceof Error && err.message?.includes("图片理解调用失败")) continue;
       throw err;
     }

src/api/aiGenerationClient.ts

@@ -408,9 +408,11 @@ export const aiGenerationClient = {
     form.append("file", blob, options?.name || "upload.png");
     if (options?.scope) form.append("scope", options.scope);
     if (options?.mimeType) form.append("mimeType", options.mimeType);
+    // Exclude Content-Type so browser auto-sets multipart/form-data with boundary
+    const { "Content-Type": _ct, ...authHeaders } = buildAuthHeaders();
     const res = await fetch(buildApiUrl("oss/upload-binary"), {
       method: "POST",
-      headers: { ...buildAuthHeaders() },
+      headers: authHeaders,
       body: form,
     });
     if (!res.ok) {