feat(entitlement): gate 60 fps output through Steam

ViewModels/MainViewModel.OutputProfile.cs

@@ -1,4 +1,5 @@
 using ytLive.Helpers;
+using ytLive.Models;
 using ytLive.Services.Entitlement;
 
 namespace ytLive.ViewModels;
@@ -13,17 +14,28 @@ public partial class MainViewModel
 {
     private IEntitlement _entitlement = CreateEntitlement();
     private bool _isAppOwned;
+    private string? _entitlementErrorMessage;
 
     public bool IsAppOwned
     {
         get => _isAppOwned;
         private set
         {
-            if (!SetProperty(ref _isAppOwned, value)) return;
+            var changed = SetProperty(ref _isAppOwned, value);
+            EntitlementErrorMessage = _entitlement.ErrorMessage;
+            if (!changed) return;
             OnPropertyChanged(nameof(HasProOutput));
+            if (!HasProOutput && _selectedQuality is { RequiresPro: true } && CanChangeQuality)
+                SelectedQuality = QualityOptions.Single(option => option.Display == OutputProfile.FreeFallbackName);
         }
     }
 
+    public string? EntitlementErrorMessage
+    {
+        get => _entitlementErrorMessage;
+        private set => SetProperty(ref _entitlementErrorMessage, value);
+    }
+
     public bool HasProOutput => DeveloperMode || IsAppOwned;
 
     private static IEntitlement CreateEntitlement()
@@ -43,6 +55,7 @@ public partial class MainViewModel
         {
             _entitlement = value;
             IsAppOwned = value.IsAppOwned;
+            EntitlementErrorMessage = value.ErrorMessage;
         }
     }