fix: clear cached init on failure + clean up SSE intervals on stream close

- services.ts: Clear _aoServicesInit on rejection so subsequent calls
  retry instead of permanently returning a failed promise
- events/route.ts: Clear both intervals in the updates catch block
  (matching heartbeat behavior) to stop polling after disconnect

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/web/src/app/api/events/route.ts

@@ -73,7 +73,9 @@ export async function GET(): Promise<Response> {
               controller.enqueue(encoder.encode(`data: ${JSON.stringify(event)}\n\n`));
             }
           } catch {
-            // Silently skip failed polls — next interval will retry
+            // enqueue failure means the stream is closed — clean up both intervals
+            clearInterval(updates);
+            clearInterval(heartbeat);
           }
         })();
       }, 5000);

packages/web/src/lib/services.ts

@@ -34,7 +34,12 @@ export function getServices(): Promise<Services> {
     return Promise.resolve(globalForServices._aoServices);
   }
   if (!globalForServices._aoServicesInit) {
-    globalForServices._aoServicesInit = initServices();
+    globalForServices._aoServicesInit = initServices().catch((err) => {
+      // Clear the cached promise so the next call retries instead of
+      // permanently returning a rejected promise.
+      globalForServices._aoServicesInit = undefined;
+      throw err;
+    });
   }
   return globalForServices._aoServicesInit;
 }