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/domains/neutron.md

@@ -0,0 +1,16 @@
+**Language / Язык:** [English](neutron.md) | [Русский](../ru/domains/neutron.md)
+
+# Neutron (network)
+
+Port **9696**. Paths under `/v2.0/`.
+
+## Stateful resources
+
+Networks, subnets, ports, routers, security groups/rules, floating IPs, agents.
+
+## Schema / seeded extensions
+
+QoS, trunks, RBAC, address scopes, subnet pools, conntrack helpers, port
+forwardings, FWaaS/VPNaaS/BGP VPN samples in demo seed.
+
+Demo adds multiple nets/SGs/routers per project for realistic list density.