feat(frontend): remotes skeleton

frontend/src/components/main/Sidebar.vue

@@ -116,6 +116,7 @@
     <nav v-if="mode=='settings'">
       <RouterLink to="/user" class="nav-item">User</RouterLink>
       <RouterLink to="/models" class="nav-item">Manage Models</RouterLink>
+      <RouterLink to="/remotes" class="nav-item">Remotes</RouterLink>
       <RouterLink to="/runs" class="nav-item">Agent Runs</RouterLink>
     </nav>
   </aside>