存量断言修复(window_scan from_sign/to_sign)、CI 漏跑 Python 测试 排查补跑、真实环境点测单、存量快照按新引擎重算的触达方案。 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0155nFCgCHtoA7jhSDGmZmMu