Add comprehensive tests for authentication, settings, and password reset pages

- Introduced smoke tests for Login, Register, Password Reset, Password Reset Confirm, and Settings pages.
- Enhanced test coverage for all dynamic imports using mocks and added Jest exclusions for non-testable Next.js files.
- Added component-specific test files for better structure and maintainability.
- Improved test isolation by mocking navigation, providers, and rendering contexts.

frontend/src/app/(authenticated)/settings/password/page.tsx

@@ -3,8 +3,10 @@
  * Change password functionality
  */
 
+/* istanbul ignore next - Next.js type import for metadata */
 import type { Metadata } from 'next';
 
+/* istanbul ignore next - Next.js metadata, not executable code */
 export const metadata: Metadata = {
   title: 'Password Settings',
 };

frontend/src/app/(authenticated)/settings/preferences/page.tsx

@@ -3,8 +3,10 @@
  * Theme, notifications, and other preferences
  */
 
-import type { Metadata } from 'next';
+/* istanbul ignore next - Next.js type import for metadata */
+import type { Metadata} from 'next';
 
+/* istanbul ignore next - Next.js metadata, not executable code */
 export const metadata: Metadata = {
   title: 'Preferences',
 };

frontend/src/app/(authenticated)/settings/profile/page.tsx

@@ -3,8 +3,10 @@
  * User profile management - edit name, email, phone, preferences
  */
 
+/* istanbul ignore next - Next.js type import for metadata */
 import type { Metadata } from 'next';
 
+/* istanbul ignore next - Next.js metadata, not executable code */
 export const metadata: Metadata = {
   title: 'Profile Settings',
 };

frontend/src/app/(authenticated)/settings/sessions/page.tsx

@@ -3,8 +3,10 @@
  * View and manage active sessions across devices
  */
 
+/* istanbul ignore next - Next.js type import for metadata */
 import type { Metadata } from 'next';
 
+/* istanbul ignore next - Next.js metadata, not executable code */
 export const metadata: Metadata = {
   title: 'Active Sessions',
 };