refactor(dashboard): reorganize menu actions across sidebar/header/profile

Move shutdown into header popup + profile, move remote into sidebar above
settings, add flag-only language switcher in header, and add language card
plus shutdown/logout actions to the profile page.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/shared/components/Sidebar.js

@@ -10,6 +10,7 @@ import { MEDIA_PROVIDER_KINDS } from "@/shared/constants/providers";
 import { useCopyToClipboard } from "@/shared/hooks/useCopyToClipboard";
 import Button from "./Button";
 import { ConfirmModal } from "./Modal";
+import NineRemotePromoModal from "./NineRemotePromoModal";
 
 // const VISIBLE_MEDIA_KINDS = ["embedding", "image", "imageToText", "tts", "stt", "webSearch", "webFetch", "video", "music"];
 const VISIBLE_MEDIA_KINDS = ["embedding", "image", "tts", "stt"];
@@ -40,8 +41,7 @@ const systemItems = [
 export default function Sidebar({ onClose }) {
   const pathname = usePathname();
   const [mediaOpen, setMediaOpen] = useState(false);
-  const [showShutdownModal, setShowShutdownModal] = useState(false);
-  const [isShuttingDown, setIsShuttingDown] = useState(false);
+  const [showRemoteModal, setShowRemoteModal] = useState(false);
   const [isDisconnected, setIsDisconnected] = useState(false);
   const [updateInfo, setUpdateInfo] = useState(null);
   const [showUpdateModal, setShowUpdateModal] = useState(false);
@@ -106,18 +106,6 @@ export default function Sidebar({ onClose }) {
   // user runs the command manually in another terminal.
 
 
-  const handleShutdown = async () => {
-    setIsShuttingDown(true);
-    try {
-      await fetch("/api/version/shutdown", { method: "POST" });
-    } catch (e) {
-      // Expected to fail as server shuts down; ignore error
-    }
-    setIsShuttingDown(false);
-    setShowShutdownModal(false);
-    setIsDisconnected(true);
-  };
-
   return (
     <>
       <aside className="flex w-72 flex-col border-r border-border-subtle bg-vibrancy backdrop-blur-xl transition-colors duration-300 min-h-full">
@@ -302,6 +290,20 @@ export default function Sidebar({ onClose }) {
               ) : null;
             })}
 
+            {/* Remote */}
+            <button
+              onClick={() => setShowRemoteModal(true)}
+              className={cn(
+                "flex items-center gap-3 px-3 py-1 rounded-lg transition-all group w-full",
+                "text-text-muted hover:bg-surface-2 hover:text-text-main"
+              )}
+            >
+              <span className="material-symbols-outlined text-[18px] group-hover:text-primary transition-colors">
+                computer
+              </span>
+              <span className="text-[13px] font-medium">Remote</span>
+            </button>
+
             {/* Settings */}
             <Link
               href="/dashboard/profile"
@@ -326,33 +328,10 @@ export default function Sidebar({ onClose }) {
           </div>
         </nav>
 
-        {/* Footer section */}
-        <div className="p-3 border-t border-border-subtle">
-          {/* Shutdown button */}
-          <Button
-            variant="outline"
-            fullWidth
-            icon="power_settings_new"
-            onClick={() => setShowShutdownModal(true)}
-            className="text-red-500 border-red-200 hover:bg-red-50 hover:border-red-300"
-          >
-            Shutdown
-          </Button>
-        </div>
       </aside>
 
-      {/* Shutdown Confirmation Modal */}
-      <ConfirmModal
-        isOpen={showShutdownModal}
-        onClose={() => setShowShutdownModal(false)}
-        onConfirm={handleShutdown}
-        title="Close Proxy"
-        message="Are you sure you want to close the proxy server?"
-        confirmText="Close"
-        cancelText="Cancel"
-        variant="danger"
-        loading={isShuttingDown}
-      />
+      {/* Remote Promo Modal */}
+      <NineRemotePromoModal isOpen={showRemoteModal} onClose={() => setShowRemoteModal(false)} />
 
       {/* Update Confirmation Modal */}
       <ConfirmModal