feat(01-07): update pages with password reset navigation and deep linking

- Updated login page to navigate to /reset-password instead of placeholder
- Added "Forgot Password?" link to signup page
- Enhanced reset password confirmation page to extract token/email from URL parameters
- Updated update password page to handle deep linking parameters
- Added deep linking support configuration in main.dart
- Improved router with URL parameter extraction helpers

lib/features/authentication/presentation/pages/signup_page.dart

@@ -137,6 +137,22 @@ class _SignupPageState extends State<SignupPage> {
                       ),
                     ],
                   ),
+                  const SizedBox(height: 12),
+                  
+                  // Forgot password link
+                  Align(
+                    alignment: Alignment.center,
+                    child: TextButton(
+                      onPressed: _handleForgotPassword,
+                      child: Text(
+                        'Forgot Password?',
+                        style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                          color: Theme.of(context).colorScheme.primary,
+                          fontWeight: FontWeight.w500,
+                        ),
+                      ),
+                    ),
+                  ),
                 ],
               ),
             ),
@@ -335,4 +351,9 @@ class _SignupPageState extends State<SignupPage> {
     // Navigate to sign in page
     context.go('/login');
   }
+
+  void _handleForgotPassword() {
+    // Navigate to password reset page
+    context.go('/reset-password');
+  }
 }