feat: enhance sidebar functionality for mobile and compact views

- Introduced a floating toggle button for mobile to show/hide the sidebar when collapsed.
- Updated sidebar behavior to completely hide on mobile when the new mobileSidebarHidden state is true.
- Added logic to conditionally render sidebar components based on screen size using the new useIsCompact hook.
- Enhanced SidebarHeader to include close and expand buttons for mobile views.
- Refactored CollapseToggleButton to hide in compact mode.
- Implemented HeaderActionsPanel for mobile actions in various views, improving accessibility and usability on smaller screens.

These changes improve the user experience on mobile devices by providing better navigation options and visibility controls.

apps/ui/src/routes/__root.tsx

@@ -28,12 +28,12 @@ import {
   performSettingsMigration,
 } from '@/hooks/use-settings-migration';
 import { Toaster } from 'sonner';
-import { Menu } from 'lucide-react';
 import { ThemeOption, themeOptions } from '@/config/theme-options';
 import { SandboxRiskDialog } from '@/components/dialogs/sandbox-risk-dialog';
 import { SandboxRejectionScreen } from '@/components/dialogs/sandbox-rejection-screen';
 import { LoadingState } from '@/components/ui/loading-state';
 import { useProjectSettingsLoader } from '@/hooks/use-project-settings-loader';
+import { useIsCompact } from '@/hooks/use-media-query';
 import type { Project } from '@/lib/electron';
 
 const logger = createLogger('RootLayout');
@@ -176,6 +176,9 @@ function RootLayoutContent() {
   // Load project settings when switching projects
   useProjectSettingsLoader();
 
+  // Check if we're in compact mode (< 1240px) to hide project switcher
+  const isCompact = useIsCompact();
+
   const isSetupRoute = location.pathname === '/setup';
   const isLoginRoute = location.pathname === '/login';
   const isLoggedOutRoute = location.pathname === '/logged-out';
@@ -805,8 +808,9 @@ function RootLayoutContent() {
   }
 
   // Show project switcher on all app pages (not on dashboard, setup, or login)
+  // Also hide on compact screens (< 1240px) - the sidebar will show a logo instead
   const showProjectSwitcher =
-    !isDashboardRoute && !isSetupRoute && !isLoginRoute && !isLoggedOutRoute;
+    !isDashboardRoute && !isSetupRoute && !isLoginRoute && !isLoggedOutRoute && !isCompact;
 
   return (
     <>
@@ -820,16 +824,6 @@ function RootLayoutContent() {
         )}
         {showProjectSwitcher && <ProjectSwitcher />}
         <Sidebar />
-        {/* Mobile menu toggle button - only shows when sidebar is closed on mobile */}
-        {!sidebarOpen && (
-          <button
-            onClick={toggleSidebar}
-            className="fixed top-3 left-3 z-50 p-2 rounded-lg bg-card/90 backdrop-blur-sm border border-border shadow-lg lg:hidden"
-            aria-label="Open menu"
-          >
-            <Menu className="w-5 h-5 text-foreground" />
-          </button>
-        )}
         <div
           className="flex-1 flex flex-col overflow-hidden transition-all duration-300"
           style={{ marginRight: streamerPanelOpen ? '250px' : '0' }}