feature: Extend Sage with contributor docs and project hygiene#8

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rodriguescarson wants to merge 6 commits into

sam-agents:mainfrom

rodriguescarson:feature/contributor-docs

Commits on Mar 9, 2026

Add Cosmo to agent-manifest and sam-cosmo.customize.yaml; sync templates
rodriguescarson
committed
Add quick-start and branch workflow to CONTRIBUTING; link OPEN_SOURCE_PLAN
rodriguescarson
committed
Add sync-templates script and npm run sync-templates; document in CONTRIBUTING
rodriguescarson
committed
Add Sentinel security reviewer agent; wire into CLI, README, and pipeline
rodriguescarson
committed
Extend Sage with CHANGELOG, release notes, and semver responsibilities
rodriguescarson
committed
Extend Sage with contributor docs and project hygiene (CONTRIBUTING, issue/PR templates, CODE_OF_CONDUCT)
rodriguescarson
committed