**Authentication Refactor:** Remove authStore and its associated tests, transitioning to the new authentication model. Add dynamic loading for PasswordResetConfirmForm to optimize performance. Include a theme initialization script in layout.tsx to prevent FOUC.

frontend/tests/components/auth/AuthGuard.test.tsx

@@ -29,7 +29,7 @@ let mockAuthState: {
   user: null,
 };
 
-jest.mock('@/stores/authStore', () => ({
+jest.mock('@/lib/stores/authStore', () => ({
   useAuthStore: () => mockAuthState,
 }));
 

frontend/tests/components/auth/AuthInitializer.test.tsx

@@ -5,10 +5,10 @@
 
 import { render, waitFor } from '@testing-library/react';
 import { AuthInitializer } from '@/components/auth/AuthInitializer';
-import { useAuthStore } from '@/stores/authStore';
+import { useAuthStore } from '@/lib/stores/authStore';
 
 // Mock the auth store
-jest.mock('@/stores/authStore', () => ({
+jest.mock('@/lib/stores/authStore', () => ({
   useAuthStore: jest.fn(),
 }));
 

frontend/tests/components/auth/LoginForm.test.tsx

@@ -40,7 +40,7 @@ jest.mock('next/navigation', () => ({
 }));
 
 // Mock auth store
-jest.mock('@/stores/authStore', () => ({
+jest.mock('@/lib/stores/authStore', () => ({
   useAuthStore: () => ({
     isAuthenticated: false,
     setAuth: jest.fn(),

frontend/tests/components/auth/RegisterForm.test.tsx

@@ -38,7 +38,7 @@ jest.mock('next/navigation', () => ({
   }),
 }));
 
-jest.mock('@/stores/authStore', () => ({
+jest.mock('@/lib/stores/authStore', () => ({
   useAuthStore: () => ({
     isAuthenticated: false,
     setAuth: jest.fn(),