feat(phase-9): implement MVP polishing and closure

T-032: User management admin panel - backend users router with CRUD, frontend UsersPage with modals

T-033: Audit log viewer - backend audit router with filters/pagination, frontend AuditLogPage

T-034: Global error handling - ErrorBoundary, LoadingSpinner, ErrorMessage, Toast components

T-035: Backend tests - pytest setup with SQLite, tests for health/auth/techniques/tests

T-036: Documentation - Updated README with testing section, created docs/API.md

backend/tests/test_health.py

@@ -0,0 +1,8 @@
+"""Tests for the health endpoint."""
+
+
+def test_health_endpoint(client):
+    """Test that the health endpoint returns 200 OK."""
+    response = client.get("/health")
+    assert response.status_code == 200
+    assert response.json() == {"status": "ok"}