Fix: Update service.py to support timeout propagation

src/nacc_orchestrator/service.py

@@ -270,8 +270,8 @@ class OrchestratorService:
             "details": response
         }
 
-    def check_agent_backend(self, message: str = "NACC agent health check", context: dict[str, Any] | None = None) -> dict[str, Any]:
-        response = self.agents.probe_backend(message, context=context)
+    def check_agent_backend(self, message: str = "NACC agent health check", context: dict[str, Any] | None = None, timeout: float | None = None) -> dict[str, Any]:
+        response = self.agents.probe_backend(message, context=context, timeout=timeout)
         self.audit.record("agent_probe", message=message)
         return {"message": message, "response": response}