ci: add Gitea Actions workflow and Docker Compose test runner; add test image\n\ngovernance: encode CI/containers rules in system prompts and AGENTS templates; update proposal and docs

docs/wrapper.md

@@ -7,6 +7,7 @@ Overview
 Status (Phase 1 in progress)
 - Implemented: `new-mode` scaffolder (repo-only), CLI skeleton, guardrails.
 - Pending (per plan): `new-project`, `run`, config precedence (YAML+yq).
+ - CI/Containers: Gitea Actions workflow in `.gitea/workflows/ci.yml`; local parity via `docker/compose.yml`.
 
 CLI
 - Help: `./CodexHelper --help`
@@ -16,6 +17,6 @@ CLI
 
 Development
 - Tests: run `scripts/test.sh` (uses bats if available, falls back to internal runner).
+- Docker tests: `scripts/test.docker.sh` runs the same suite via Docker Compose.
 - Follow TDD: write failing tests first, make them pass, refactor.
 - Keep `docs/architecture.md` and README up to date as features land.
-