refactor(settings): consolidate user profile into single settings page

Drop the standalone /settings/profile route + user-profile component;
folding the same fields into user-settings means one place to update
and one menu item. UserMenu loses the Profile dropdown entry.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/layout/user-menu.tsx

@@ -3,7 +3,7 @@
 /**
  * Unified user menu - used by the topbar avatar AND the sidebar-footer
  * profile row. Encapsulates:
- *   - Profile / Settings / Notification preferences links
+ *   - Settings / Notification preferences links
  *   - Dark-mode toggle
  *   - Sign out
  *   - Inline port switcher (when the user has access to >1 port)
@@ -15,7 +15,7 @@
 
 import { useRouter } from 'next/navigation';
 import { useQueryClient } from '@tanstack/react-query';
-import { LogOut, User, Settings, Bell, Check, Building2 } from 'lucide-react';
+import { LogOut, Settings, Bell, Check, Building2 } from 'lucide-react';
 import { type ReactNode } from 'react';
 
 import { useUIStore } from '@/stores/ui-store';
@@ -107,11 +107,6 @@ export function UserMenu({ trigger, align = 'end', user, ports }: UserMenuProps)
           </>
         )}
 
-        {/* eslint-disable-next-line @typescript-eslint/no-explicit-any */}
-        <DropdownMenuItem onClick={() => router.push(`${base}/settings/profile` as any)}>
-          <User className="w-4 h-4 mr-2" aria-hidden />
-          Profile
-        </DropdownMenuItem>
         {/* eslint-disable-next-line @typescript-eslint/no-explicit-any */}
         <DropdownMenuItem onClick={() => router.push(`${base}/settings` as any)}>
           <Settings className="w-4 h-4 mr-2" aria-hidden />