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

frontend/src/App.tsx

@@ -7,6 +7,8 @@ import TestsPage from "./pages/TestsPage";
 import TestCreatePage from "./pages/TestCreatePage";
 import TestDetailPage from "./pages/TestDetailPage";
 import SystemPage from "./pages/SystemPage";
+import UsersPage from "./pages/UsersPage";
+import AuditLogPage from "./pages/AuditLogPage";
 import Layout from "./components/Layout";
 import ProtectedRoute from "./components/ProtectedRoute";
 
@@ -38,6 +40,22 @@ export default function App() {
             </ProtectedRoute>
           }
         />
+        <Route
+          path="/users"
+          element={
+            <ProtectedRoute roles={["admin"]}>
+              <UsersPage />
+            </ProtectedRoute>
+          }
+        />
+        <Route
+          path="/audit"
+          element={
+            <ProtectedRoute roles={["admin"]}>
+              <AuditLogPage />
+            </ProtectedRoute>
+          }
+        />
       </Route>
 
       {/* Catch-all → dashboard */}