Add Mac client mode and simplify local proxy UI

src/web/components/Sidebar.jsx

@@ -8,10 +8,14 @@ const NAV = [
   { id: 'settings',   label: 'Настройки',     ico: '⚙' },
 ];
 
-export function Sidebar({ active, onChange, badges = {} }) {
+export function Sidebar({ active, onChange, badges = {}, mode = 'gateway' }) {
+  const items = mode === 'client'
+    ? NAV.filter((item) => item.id !== 'routing')
+    : NAV;
+
   return (
     <nav className="sidebar">
-      {NAV.map((item) => {
+      {items.map((item) => {
         const badge = badges[item.id];
         return (
           <button