Add a stateful Proxmox API console and broad handler coverage beyond the

initial QEMU slice, backed by imported contracts for majors 6–9.
- Implement durable handlers for access/auth, cluster, LXC, storage, HA,
  firewall, Ceph, SDN, ACME, notifications, pools, mapping, and node ops
- Serve an interactive Web UI with catalog browsing, demo seed controls,
  and OpenAPI/help surfaces
- Bundle PVE 6.4-15, 7.4-16, and 8.4.5 contract revisions alongside 9.2.3
- Support in-memory runtime contract Apply (POST /ui/api/contract/apply)
  so /version and /api2 routes follow the selected major until restart
- Expand seed profiles (including demo-cluster), migrations 007–008, TLS
  gateway config, Compose/Makefile tooling, and compatibility evidence
- Tighten .gitignore for macOS, hidden directories (.*/), and local secrets

tests/integration/test_migrations.py

@@ -47,7 +47,7 @@ async def test_small_seed_is_idempotent() -> None:
         await migrate(connection)
         await apply_seed(connection, small_profile())
         await apply_seed(connection, small_profile())
-        assert await connection.fetchval("SELECT count(*) FROM nodes WHERE name = 'pve1'") == 1
+        assert await connection.fetchval("SELECT count(*) FROM nodes WHERE name = 'pve01'") == 1
         assert (
             await connection.fetchval(
                 """SELECT count(*) FROM resources
@@ -72,6 +72,33 @@ async def test_small_seed_is_idempotent() -> None:
         await connection.close()
 
 
+async def test_demo_cluster_seed_populates_realistic_state() -> None:
+    connection = await asyncpg.connect(os.environ["TEST_DATABASE_URL"])
+    try:
+        await migrate(connection)
+        from app.simulation.seed import build_profile
+
+        await apply_seed(connection, build_profile("demo-cluster"))
+        assert await connection.fetchval("SELECT count(*) FROM nodes") == 20
+        assert await connection.fetchval("SELECT count(*) FROM virtual_machines") == 850
+        assert await connection.fetchval("SELECT count(*) FROM containers") == 150
+        assert (
+            await connection.fetchval("SELECT count(*) FROM resources WHERE kind = 'ceph-osd'")
+            == 300
+        )
+        assert await connection.fetchval("SELECT count(*) FROM backups") >= 400
+        assert await connection.fetchval("SELECT count(*) FROM task_logs") >= 500
+        assert await connection.fetchval("SELECT count(*) FROM snapshots") >= 100
+        ceph_capacity = await connection.fetchval(
+            "SELECT capacity_bytes FROM storages WHERE storage_id = 'ceph-prod'"
+        )
+        assert ceph_capacity == 5 * 1024**5
+        profile = await connection.fetchval("SELECT metadata->>'profile' FROM clusters LIMIT 1")
+        assert profile == "demo-cluster"
+    finally:
+        await connection.close()
+
+
 async def test_schema_readiness_and_optimistic_resource_repository() -> None:
     url = os.environ["TEST_DATABASE_URL"]
     connection = await asyncpg.connect(url)