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- EmployeeScoreConfig.config_json 去掉 | None,注解与 DDL(nullable=False)一致 - 删测试死 import datetime as dt - 补约束测试: metric_daily 复合PK防重/ call_daily PK防重/ config_json NOT NULL (JSON 列 Python None 序列化为 'null' 字符串,测 NOT NULL 须 sa.null()) - EmployeeScoreConfig docstring 补 JSON 列整列重赋值注记 Co-Authored-By: Claude Code <noreply@anthropic.com>