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/unit/test_web_assets.py

@@ -0,0 +1,34 @@
+"""Web asset loading tests."""
+
+from app.web.assets import console_html
+
+
+def test_console_html_is_read_from_disk() -> None:
+    html = console_html()
+    assert "Proxmox API Emulator" in html
+    assert 'id="catalog-drawer"' in html
+    assert "catalog-drawer" in html
+    assert 'id="catalog-coverage"' in html
+    assert "Implementation coverage" in html
+    for required_id in (
+        "method-desc",
+        "catalog-meta",
+        "stat-runtime",
+        "stat-catalog",
+        "stat-cluster-name",
+        "stat-nodes",
+        "stat-qemu",
+        "stat-lxc",
+        "implemented-only",
+        "btn-contract-apply",
+        "btn-catalog-refresh",
+    ):
+        assert f'id="{required_id}"' in html, required_id
+    assert "Apply as runtime" in html
+    assert "CONTRACT_SNAPSHOT" in html
+    assert 'id="help-drawer"' in html
+    assert 'id="help-badge"' in html
+    assert 'id="data-badge"' in html
+    assert 'id="data-drawer"' in html
+    assert 'id="data-panel"' in html
+    assert 'id="ui-modal"' in html