- Update root AGENTS.md to commit 21008cc / tag 2.1.5-rc15
- Add CI workflows info (ci-build.yml, docker-build.yml, deploy-docs.yml)
- Add Repository Layer and Contract Tests to WHERE TO LOOK
- Add websocket_reporter to CODE MAP
- Add Go version conventions (1.24/1.23/1.22)
- Add PostgreSQL migration support note
- Update go-backend AGENTS.md with PostgreSQL support and contract tests
- Update go-gost AGENTS.md with CI build conventions
- Update vite-frontend AGENTS.md with component counts
- Update go-gost/x AGENTS.md with file counts and registry reference
- Update handler AGENTS.md with LOC estimates