Generate README.md for dsh plugin repos from package.json + cordis.patch.yml + source layout.
- Deterministic starter README: install/CLI/tools/dev/license sections
- Read-only by default; write/overwrite explicit
- CLI + agent-callable readme_forge tool, dsh-readme-forge/v1 results
- 10 unit tests, packed-artifact integration, fresh-profile dsh web boot smoke