Fix: Change orchestrator port from 8000 to 8888 (match UI)

app.py

@@ -82,7 +82,7 @@ def start_local_node():
 def start_orchestrator_api():
     """Start the orchestrator API in the background."""
     print("🧠 Starting NACC Orchestrator API...")
-    uvicorn.run(orchestrator_app, host="127.0.0.1", port=8000)
+    uvicorn.run(orchestrator_app, host="127.0.0.1", port=8888)
 
 # Start background services
 if __name__ == "__main__":