chore(repo): clean root; move docs; keep areas for prompts

docs/bootstrap-cicd.md

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+Local CI Parity & Bootstrap
+
+Purpose
+- Provide a portable CI toolchain via a Dockerized image and compose file so that format/lint/build checks run identically locally and in CI.
+
+Components
+- `docker/ci.Dockerfile` – builds the CI image with shellcheck, shfmt, hadolint, actionlint, yamllint, Node tools.
+- `docker/ci.compose.yml` – runs the CI container mounting the repo at `/workspace`.
+- `scripts/ci` – wrapper for phases: `format`, `lint`, `build`, `test`, `security`, `all`.
+- Git hooks – `.githooks/*` installed via `scripts/setup-hooks`.
+
+Usage
+- Install hooks: `make -f scripts/Makefile hooks-setup`
+- Quick checks: `make -f scripts/Makefile quick` (format + lint)
+- Full pass: `make -f scripts/Makefile check` (all phases)
+
+Notes
+- Pre-commit hook runs format/lint and commit message checks.
+- Pre-push hook runs build/test/security placeholders.
+- CI workflow runs on integration and protected branches when runners are enabled.
+