fix(proxy): attach litellm_call_id to client disconnect log record

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

litellm/proxy/common_request_processing.py

@@ -1457,6 +1457,7 @@ def _log_llm_api_exception(e: Exception, litellm_call_id: str | None) -> None:
             "litellm.proxy.proxy_server._handle_llm_api_exception(): client disconnected, "
             "upstream LLM request cancelled - litellm_call_id=%s",
             litellm_call_id,
+            extra=MappingProxyType({"litellm_call_id": litellm_call_id}),
         )
         return
     log_fn: Final = (

tests/test_litellm/proxy/test_common_request_processing.py

@@ -8741,4 +8741,6 @@ class TestErrorLogCarriesCallId:
         finally:
             verbose_proxy_logger.propagate = False
 
-        assert call_id in caplog.records[-1].getMessage()
+        record: Final = caplog.records[-1]
+        assert record.litellm_call_id == call_id
+        assert call_id in record.getMessage()