Implement integration tests with Playwright

tests/curator.spec.ts

@@ -0,0 +1,23 @@
+import { test, expect } from '@playwright/test';
+
+test.describe('Curator Dashboard', () => {
+    test('Curator login form should be displayed', async ({ page }) => {
+        await page.goto('/en/curator');
+        // Check for login form elements
+        await expect(page.getByPlaceholder('Username')).toBeVisible();
+        await expect(page.getByPlaceholder('Password')).toBeVisible();
+        await expect(page.getByRole('button', { name: 'Log in' })).toBeVisible();
+    });
+
+    // Valid login cannot be tested without seed data in this environment
+    test('Curator login attempt (invalid credentials)', async ({ page }) => {
+        await page.goto('/en/curator');
+
+        await page.getByPlaceholder('Username').fill('invalid_user');
+        await page.getByPlaceholder('Password').fill('invalid_pass');
+        await page.getByRole('button', { name: 'Log in' }).click({ force: true });
+
+        // Should show error message
+        await expect(page.getByText('Login failed')).toBeVisible();
+    });
+});