Initial commit: Complete NodeJS-native setup

- Migrated from Python pre-commit to NodeJS-native solution
- Reorganized documentation structure
- Set up Husky + lint-staged for efficient pre-commit hooks
- Fixed Dockerfile healthcheck issue
- Added comprehensive documentation index

tests/e2e/auth.spec.ts

@@ -0,0 +1,58 @@
+import { test, expect } from '@playwright/test';
+
+test.describe('Authentication Flow', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.goto('/');
+  });
+
+  test('should display login page for unauthenticated users', async ({
+    page,
+  }) => {
+    await expect(page.locator('h2')).toContainText(['Sign In', 'Login']);
+    await expect(page.locator('input[type="email"]')).toBeVisible();
+    await expect(page.locator('input[type="password"]')).toBeVisible();
+  });
+
+  test('should allow user registration', async ({ page }) => {
+    // Click register tab/link
+    await page.click('text=Register');
+
+    // Fill registration form
+    await page.fill('input[type="email"]', 'test@example.com');
+    await page.fill('input[name="username"]', 'testuser');
+    await page.fill('input[type="password"]', 'TestPassword123!');
+
+    // Submit registration
+    await page.click('button[type="submit"]');
+
+    // Should show verification message or redirect
+    await expect(page.locator('text=verification')).toBeVisible();
+  });
+
+  test('should login with admin credentials', async ({ page }) => {
+    // Fill login form with admin credentials
+    await page.fill('input[type="email"]', 'admin@localhost');
+    await page.fill('input[type="password"]', 'admin123!');
+
+    // Submit login
+    await page.click('button[type="submit"]');
+
+    // Should redirect to main app
+    await expect(page.locator('h1')).toContainText('Medication Reminder');
+    await expect(page.locator('text=Admin')).toBeVisible();
+  });
+
+  test('should show error for invalid credentials', async ({ page }) => {
+    await page.fill('input[type="email"]', 'invalid@example.com');
+    await page.fill('input[type="password"]', 'wrongpassword');
+
+    await page.click('button[type="submit"]');
+
+    await expect(page.locator('text=Invalid')).toBeVisible();
+  });
+
+  test('should handle OAuth login buttons', async ({ page }) => {
+    await expect(page.locator('button:has-text("Google")')).toBeVisible();
+    await expect(page.locator('button:has-text("GitHub")')).toBeVisible();
+  });
+});