Codex Agent 1fa9385d02 fix: resolve UUID JSON serialization error in checkpoint creation ... Issue: - Object of type <class 'uuid.UUID'> is not JSON serializable error when creating checkpoints - UUID objects in database records couldn't be serialized to JSON Solution: - Updated json_serializer function in create_checkpoint() to properly handle UUID types - Added explicit isinstance check for uuid.UUID before checking for isoformat - Ensures all UUID values are converted to strings before JSON serialization This ensures checkpoints can be created successfully with all database data types. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>		2025-10-30 11:52:06 +08:00
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checkpoint_20251030_115009.json	fix: resolve UUID JSON serialization error in checkpoint creation	2025-10-30 11:52:06 +08:00