Add password reset functionality with form components, pages, and tests

- Implemented `PasswordResetRequestForm` and `PasswordResetConfirmForm` components with email and password validation, strength indicators, and error handling.
- Added dedicated pages for requesting and confirming password resets, integrated with React Query hooks and Next.js API routes.
- Included tests for validation rules, UI states, and token handling to ensure proper functionality and coverage.
- Updated ESLint and configuration files for new components and pages.
- Enhanced `IMPLEMENTATION_PLAN.md` with updated task details and documentation for password reset workflows.

frontend/src/components/auth/index.ts

@@ -1,4 +1,10 @@
 // Authentication components
-// Examples: LoginForm, RegisterForm, PasswordResetForm, etc.
 
-export {};
+// Route protection
+export { AuthGuard } from './AuthGuard';
+
+// Forms
+export { LoginForm } from './LoginForm';
+export { RegisterForm } from './RegisterForm';
+export { PasswordResetRequestForm } from './PasswordResetRequestForm';
+export { PasswordResetConfirmForm } from './PasswordResetConfirmForm';