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.

app/db/migrations/011_openstack_demo_topology.sql

@@ -0,0 +1,56 @@
+-- Topology tables for demo cloud + marker for loaded profile.
+
+CREATE TABLE IF NOT EXISTS os_availability_zones (
+    name text PRIMARY KEY,
+    zone_state jsonb NOT NULL DEFAULT '{"available": true}'::jsonb
+);
+
+CREATE TABLE IF NOT EXISTS os_hypervisors (
+    id integer PRIMARY KEY,
+    hypervisor_hostname text NOT NULL UNIQUE,
+    state text NOT NULL DEFAULT 'up',
+    status text NOT NULL DEFAULT 'enabled',
+    hypervisor_type text NOT NULL DEFAULT 'QEMU',
+    hypervisor_version integer NOT NULL DEFAULT 201000,
+    host_ip text,
+    vcpus integer NOT NULL DEFAULT 64,
+    vcpus_used integer NOT NULL DEFAULT 0,
+    memory_mb integer NOT NULL DEFAULT 262144,
+    memory_mb_used integer NOT NULL DEFAULT 0,
+    local_gb integer NOT NULL DEFAULT 2000,
+    local_gb_used integer NOT NULL DEFAULT 0,
+    running_vms integer NOT NULL DEFAULT 0,
+    service_host text,
+    availability_zone text REFERENCES os_availability_zones(name),
+    created_at timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE TABLE IF NOT EXISTS os_aggregates (
+    id integer PRIMARY KEY,
+    name text NOT NULL UNIQUE,
+    availability_zone text,
+    hosts jsonb NOT NULL DEFAULT '[]'::jsonb,
+    metadata jsonb NOT NULL DEFAULT '{}'::jsonb,
+    created_at timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE TABLE IF NOT EXISTS os_compute_services (
+    id integer GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
+    "binary" text NOT NULL,
+    host text NOT NULL,
+    zone text,
+    status text NOT NULL DEFAULT 'enabled',
+    state text NOT NULL DEFAULT 'up',
+    updated_at timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE TABLE IF NOT EXISTS os_demo_meta (
+    key text PRIMARY KEY,
+    value text NOT NULL,
+    updated_at timestamptz NOT NULL DEFAULT now()
+);
+
+-- Extra columns for richer server/volume demo metadata (idempotent).
+ALTER TABLE os_servers ADD COLUMN IF NOT EXISTS availability_zone text;
+ALTER TABLE os_servers ADD COLUMN IF NOT EXISTS host text;
+ALTER TABLE os_volumes ADD COLUMN IF NOT EXISTS description text NOT NULL DEFAULT '';