fix(js-sdk): emit error event on watcher timeout to prevent start() hanging

Timeout paths in both WebSocket and pollLoop were calling close()
without emitting an error event, which would cause the start() Promise
to hang indefinitely. Now emits an error event before closing so the
Promise properly resolves.

Co-Authored-By: gaurav <gauravchadha1676@gmail.com>

Author: devin-ai-integration[bot]

apps/js-sdk/firecrawl/src/v2/watcher.ts

@@ -179,7 +179,10 @@ export class Watcher extends EventEmitter {
       } catch {
         // ignore
       }
-      if (timeoutMs && Date.now() - startTs > timeoutMs) this.close();
+      if (timeoutMs && Date.now() - startTs > timeoutMs) {
+        this.emit("error", { status: "failed", data: [], error: "Watcher timeout", id: this.jobId });
+        this.close();
+      }
     };
     ws.onerror = () => {
       this.emit("error", { status: "failed", data: [], error: "WebSocket error", id: this.jobId });
@@ -263,7 +266,11 @@ export class Watcher extends EventEmitter {
       } catch {
         // ignore polling errors
       }
-      if (timeoutMs && Date.now() - startTs > timeoutMs) break;
+      if (timeoutMs && Date.now() - startTs > timeoutMs) {
+        this.emit("error", { status: "failed", data: [], error: "Watcher timeout", id: this.jobId });
+        this.close();
+        break;
+      }
       await new Promise((r) => setTimeout(r, Math.max(1000, this.pollInterval * 1000)));
     }
   }