Packaging, rtut check, tests CI job; schemas move into the package (RBT-WP-0009-T02)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: sonnet
Assistant-Process: 295952@bnt-lap001
Assistant-Session: e93f64ad-516c-46eb-9666-aad8d300c477

README.md

@@ -4,11 +4,23 @@ A user interface specialized to present runbook tutorials that with parameters
 can guide through actual IT administration and operation tasks.
 
 - **Intent:** `INTENT.md` · **Scope:** `SCOPE.md`
-- **Pack specification:** `docs/pack-spec.md` (v0.1, runnable) and `docs/pack-spec-v0.2.md` (v0.2: stages, gates, datapoints, actors, modes; validates, not yet runnable). Schemas in `schema/`. UX findings: `docs/ux-review-2026-09-29.md`
+- **Pack specification:** `docs/pack-spec.md` (v0.1, runnable) and `docs/pack-spec-v0.2.md` (v0.2: stages, gates, datapoints, actors, modes; validates, not yet runnable). Schemas in `rtut/schema/`. UX findings: `docs/ux-review-2026-09-29.md`
 - **Packs live where the procedure lives:** `runbooks/<pack>/pack.yaml` in the owning repo.
   Examples: `net-kingdom/runbooks/`, and here `runbooks/example-hello/` and
   `runbooks/showcase-lighthouse/` (a harmless story to try the UI on).
 
+## Install
+
+Python 3.12 or newer.
+
+```bash
+make install        # editable install with the test dependencies (pip install -e ".[test]")
+make check          # validate every pack, attribute set, project and template
+make test           # run the tests
+```
+
+A plain `pip install .` works too and provides the `rtut` command; the JSON schemas ship inside the package.
+
 ```bash
 python3 -m rtut validate <repo-root>      # validate every pack
 python3 -m rtut list <repo-root>          # id, engine, maturity, title