fix(metadata)!: sys_metadata_history.recorded_by 存 NULL 而非哨兵字符串 'system' (#4556) - #4742

fix(metadata)!: sys_metadata_history.recorded_by 存 NULL 而非哨兵字符串 'system' (#4556)#4742

os-zhuang merged 3 commits into

mainobjectstack-ai/objectstack:mainfrom

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