- Created src/core/tkg/ module with service, log, and models
- Added tkg_operation_log table for tracking all TKG operations
- TkgService: build, rebuild (with force option), delete, get_operations
- Updated rebuild endpoint with force parameter
- Added GET /api/v1/file/:file_uuid/tkg for operation history
- Added DELETE /api/v1/file/:file_uuid/tkg for TKG deletion
- TKG rebuild now always triggers Rule 2 (even with 0 edges)
- Full audit trail for all TKG operations (create/update/delete/rebuild)
Accusys