refactor(settings): a pull-out drawer, with Zoom as a category — and the menu moves to the wordmark

Creator directive, 2026-11-01. Settings stopped being a centred modal.

- **Drawer** (Controls/SettingsDrawer): hosted in PreviewPane's pull-out stack, 320px, the same
  animated-width pattern as Stream Settings / YPP / Socials / TEST, opened by the gear rail tab
  on a single left click. SettingsDrawerOpen is exclusive with the other four, both directions.
  This also removes the modal's MaxHeight-700 scroll problem for good: the drawer is the height
  of the preview.
- **Categories**: headings with controls indented beneath them. Zoom now owns *Zoom view shape*
  (Circle / Phone / Tablet) and *Zoom box follows*; Recordings, Brand logo and Scene transition
  are their own categories.
- **The app menu moved to the LlamaCasty wordmark** (right-click → Report Bug / Feature Request /
  About). Left-click still opens About. The gear tab no longer carries a menu at all, so clicking
  it does exactly one thing.

OverlayHost keeps only the Bug / Feature / About panels; its brand-logo handlers and the dev-panel
injection moved with the settings block. BrandLogoPreviewTests follows the control (same assertions,
new path). Release 0 warnings; 15 tests pass across brand logo, zoom, entitlement and preview
history.

ViewModels/MainViewModel.Settings.cs

@@ -0,0 +1,42 @@
+namespace ytLive.ViewModels;
+
+/// <summary>
+/// App Settings as a right-edge drawer (creator ruling 2026-11-01): the gear rail tab opens it
+/// immediately, in the same exclusive-slide pattern as Stream Settings / YPP / Socials / TEST.
+///
+/// <para>It is a separate flag from <see cref="IsSettingsOpen"/> because the overlay shell now
+/// only carries Report Bug / Feature Request / About — settings stopped being a modal.</para>
+/// </summary>
+public partial class MainViewModel
+{
+    private bool _settingsDrawerOpen;
+
+    public bool SettingsDrawerOpen
+    {
+        get => _settingsDrawerOpen;
+        private set => SetProperty(ref _settingsDrawerOpen, value);
+    }
+
+    internal void ToggleSettingsDrawer()
+    {
+        if (_settingsDrawerOpen)
+        {
+            SettingsDrawerOpen = false;
+            return;
+        }
+
+        // One drawer at a time, like the rail's other tabs.
+        BroadcastForm.IsDrawerOpen = false;
+        Ypp.IsDrawerOpen = false;
+        TestSession.IsDrawerOpen = false;
+        if (SocialsDrawerOpen) CloseSocialsDrawer();
+
+        SettingsDrawerOpen = true;
+    }
+
+    /// <summary>Called by the other drawers when they open, so settings yields to them.</summary>
+    private void CloseSettingsDrawerIfOpen()
+    {
+        if (_settingsDrawerOpen) SettingsDrawerOpen = false;
+    }
+}

ViewModels/MainViewModel.Socials.cs

@@ -185,6 +185,7 @@ public partial class MainViewModel
         BroadcastForm.IsDrawerOpen = false;
         Ypp.IsDrawerOpen = false;
         TestSession.IsDrawerOpen = false;
+        CloseSettingsDrawerIfOpen();
         SocialsDrawerOpen = true;
         OnPropertyChanged(nameof(SocialsDrawer));
         OnPropertyChanged(nameof(SocialsDrawerOpen));

ViewModels/MainViewModel.Ypp.cs

@@ -39,6 +39,7 @@ public partial class MainViewModel
                 Ypp.IsDrawerOpen = false;
                 TestSession.IsDrawerOpen = false;
                 CloseSocialsDrawer();
+                CloseSettingsDrawerIfOpen();
             }
         };
         Ypp.PropertyChanged += (_, e) =>
@@ -48,6 +49,7 @@ public partial class MainViewModel
                 BroadcastForm.IsDrawerOpen = false;
                 TestSession.IsDrawerOpen = false;
                 CloseSocialsDrawer();
+                CloseSettingsDrawerIfOpen();
             }
         };
         TestSession.PropertyChanged += (_, e) =>
@@ -57,6 +59,7 @@ public partial class MainViewModel
                 BroadcastForm.IsDrawerOpen = false;
                 Ypp.IsDrawerOpen = false;
                 CloseSocialsDrawer();
+                CloseSettingsDrawerIfOpen();
             }
         };
     }

ViewModels/MainViewModel.cs

@@ -232,7 +232,7 @@ public partial class MainViewModel : ViewModelBase
         ToggleMicMuteCommand = new RelayCommand(_ => ToggleMicMute());
         ToggleGameMuteCommand = new RelayCommand(_ => ToggleGameMute());
         OpenMicPickerCommand = new RelayCommand(_ => PickMicrophone());
-        OpenSettingsCommand = new RelayCommand(_ => ShowOverlay(nameof(IsSettingsOpen), "App Settings"));
+        OpenSettingsCommand = new RelayCommand(_ => ToggleSettingsDrawer());
         InitPreviewHistory();
         OpenBugCommand = new RelayCommand(_ => ShowOverlay(nameof(IsBugOpen), "Report Bug"));
         OpenFeatureCommand = new RelayCommand(_ => ShowOverlay(nameof(IsFeatureOpen), "Feature Request"));