feat: add admin user management features and update user repository methods

- Implemented updateRoles, updateSanctions, and deleteUser methods in both in-memory and PostgreSQL user repositories.
- Enhanced UserSanctions and UserServerRestriction interfaces to include additional properties.
- Added AdminView component for admin functionalities including user lookup, role management, sanctions application, and profile management.
- Integrated admin token handling in TRPC client for secure API requests.
- Updated routing to include admin dashboard and linked it in the default layout.

app/gateway-frontend/src/layouts/DefaultLayout.vue

@@ -17,6 +17,7 @@
             <a href="#" class="hover:text-white">패치 내역</a>
             <a href="#" class="hover:text-white">Git Repo.</a>
             <a href="#" class="hover:text-white">위키</a>
+            <RouterLink to="/admin" class="hover:text-white">관리자</RouterLink>
           </nav>
         </div>
         <div class="flex space-x-4 text-sm">