Add tests for logging utilities

[zhongkaifu]

Motivation

• Improve coverage for logging utilities that manage run and trace context and produce structured JSON logs.
• Ensure log_event includes workflow_run_id, trace_id, span_id, and payload overrides for node_id/action_id.
• Validate log_llm_message correctly serializes object-style messages including tool_calls[].function.name and arguments.

Description

• Add tests/test_logging_utils.py containing test_configure_run_logging_sets_and_resets_run_id, test_use_trace_context_sets_current_and_resets, test_log_event_includes_context_and_payload_override, and test_log_llm_message_serializes_tool_calls.
• Tests use capsys to capture stdout JSONL output and tmp_path to write temporary log files.
• Tests exercise configure_run_logging, use_trace_context, log_event, and log_llm_message, and verify payload merging and trace context propagation.

Testing

• No automated tests were executed as part of this change.

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Align node_id/action_id assertions with log_event behavior

These assertions assume log_event will copy node_id/action_id from the payload when the explicit args are omitted, but log_event currently initializes those keys to None and then uses record.setdefault(...), which does not overwrite existing keys. As a result, the emitted JSON line will keep node_id/action_id as null and this test will fail unless the production code is updated to override or the test passes node_id/action_id explicitly. Consider adjusting the test expectations or the logging logic to match the intended behavior.

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