fix: Correct profile settings route from /profile-settings to /profile/settings

Issue: Edit Profile button returned 404 error

Root Cause:
- App.tsx route: /profile-settings (with dash)
- Dashboard navigate: /profile/settings (with slash)
- Route mismatch caused 404

Changes:
- Updated App.tsx route: /profile-settings → /profile/settings
- Updated AppLayout.tsx Settings button navigation

All profile settings links now use consistent /profile/settings route

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/components/AppLayout.tsx

@@ -192,8 +192,8 @@ const AppLayout: React.FC = () => {
                     </div>
                   </div>
 
-                  <button 
-                    onClick={() => navigate('/profile-settings')}
+                  <button
+                    onClick={() => navigate('/profile/settings')}
                     className="text-gray-300 hover:text-white transition-colors flex items-center gap-1 text-sm"
                   >
                     <Settings className="w-4 h-4" />