Initial commit: stateful OpenStack API laboratory simulator.

Ship Keystone auth, multi-service handlers (Yoga→Dalmatian), Compose/Helm
packaging, API contract packs, and pytest/Pulumi coverage labs.

docs/ru/domains/keystone.md

@@ -0,0 +1,21 @@
+**Language / Язык:** [English](../../domains/keystone.md) | [Русский](keystone.md)
+
+# Keystone (identity)
+
+Порт **5000**. Пути под `/v3/`.
+
+## Реализовано (lab)
+
+- `POST /v3/auth/tokens` — password auth, project scope
+- Catalog с multi-port endpoints
+- Projects, users, roles, role assignments (seed + CRUD через pack/schema)
+- Domains (`Default`)
+
+## Seed
+
+Профили minimal и demo создают домен `Default`, роли `admin`/`member` и
+пользователей, описанных в [authentication.md](../authentication.md).
+
+## Примечания
+
+Federation, application credentials и полный policy engine вне scope.