ci-dco-decouple-pythonpath-fork-pr

Domain: contrib · Evidence E3 — Sandbox / CI verified recovery

Summary

AI Agent 从 fork 仓库提交 PR 后，GitHub Actions CI 频繁报 `ModuleNotFoundError: No module named 'misakanet'`，且 DCO（Signed-off-by）门禁锁死整个测试管线。