fix(qoder): increase timeouts for reasoning models and improve stream handling

open-sse/executors/qoder.js

@@ -28,6 +28,7 @@ import { createHash } from "crypto";
 import { BaseExecutor } from "./base.js";
 import { PROVIDERS } from "../config/providers.js";
 import { proxyAwareFetch } from "../utils/proxyFetch.js";
+import { FETCH_CONNECT_TIMEOUT_MS } from "../config/runtimeConfig.js";
 import {
   QODER_CHAT_URL_ENCODED,
   QODER_MODEL_MAP,
@@ -407,15 +408,21 @@ export class QoderExecutor extends BaseExecutor {
       ...cosyHeaders,
     };
 
+    // Abort if upstream doesn't return response headers within connect timeout.
+    const timeoutMs = this.config?.timeoutMs || FETCH_CONNECT_TIMEOUT_MS;
+    const connectCtrl = new AbortController();
+    const connectTimer = setTimeout(() => connectCtrl.abort(new Error("fetch connect timeout")), timeoutMs);
+    const mergedSignal = signal ? AbortSignal.any([signal, connectCtrl.signal]) : connectCtrl.signal;
+
     let response;
     try {
       response = await proxyAwareFetch(
         url,
-        { method: "POST", headers, body: encodedBodyBuf, signal },
+        { method: "POST", headers, body: encodedBodyBuf, signal: mergedSignal },
         proxyOptions,
       );
-    } catch (err) {
-      throw err;
+    } finally {
+      clearTimeout(connectTimer);
     }
 
     if (!response.ok) {