fix: log exception when output guardrail raises instead of silently ignoring

Author: cty-ut

src/agents/realtime/session.py

@@ -988,7 +988,7 @@ async def _run_output_guardrails(self, text: str, response_id: str) -> bool:
                 if result.output.tripwire_triggered:
                     triggered_results.append(result)
             except Exception:
-                # Continue with other guardrails if one fails
+                logger.exception("Output guardrail %r raised an exception", guardrail.get_name())
                 continue
 
         if triggered_results: