Advanced Paste: No cache for foundry local model list (#43716)

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fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request
Cache of the downloaded model will make the newly added model only work
after running of powertoys, this disable the cache, so just downloaded
model will take effect immediately

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## PR Checklist

- [ ] Closes: #xxx
<!-- - [ ] Closes: #yyy (add separate lines for additional resolved
issues) -->
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx

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or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments

<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
Validated locally

src/settings-ui/Settings.UI/SettingsXAML/Controls/ModelPicker/FoundryLocalModelPicker.xaml.cs

@@ -30,7 +30,7 @@ public sealed partial class FoundryLocalModelPicker : UserControl
 
     public delegate void DownloadRequestedEventHandler(object sender, object payload);
 
-    public delegate void LoadRequestedEventHandler(object sender, FoundryLoadRequestedEventArgs args);
+    public delegate void LoadRequestedEventHandler(object sender);
 
     public event ModelSelectionChangedEventHandler SelectionChanged;
 
@@ -94,7 +94,7 @@ public sealed partial class FoundryLocalModelPicker : UserControl
 
     public bool HasDownloadableModels => DownloadableModels?.Cast<object>().Any() ?? false;
 
-    public void RequestLoad(bool refresh)
+    public void RequestLoad()
     {
         if (IsLoading)
         {
@@ -107,7 +107,7 @@ public sealed partial class FoundryLocalModelPicker : UserControl
 
         IsAvailable = false;
         StatusText = "Loading Foundry Local status...";
-        LoadRequested?.Invoke(this, new FoundryLoadRequestedEventArgs(refresh));
+        LoadRequested?.Invoke(this);
     }
 
     private static void OnCachedModelsChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
@@ -310,7 +310,7 @@ public sealed partial class FoundryLocalModelPicker : UserControl
 
     private void RefreshModelsButton_Click(object sender, RoutedEventArgs e)
     {
-        RequestLoad(refresh: true);
+        RequestLoad();
     }
 
     private void UpdateVisualStates()
@@ -444,14 +444,4 @@ public sealed partial class FoundryLocalModelPicker : UserControl
     {
         return string.IsNullOrWhiteSpace(license) ? Visibility.Collapsed : Visibility.Visible;
     }
-
-    public sealed class FoundryLoadRequestedEventArgs : EventArgs
-    {
-        public FoundryLoadRequestedEventArgs(bool refresh)
-        {
-            Refresh = refresh;
-        }
-
-        public bool Refresh { get; }
-    }
 }

src/settings-ui/Settings.UI/SettingsXAML/Views/AdvancedPastePage.xaml.cs

@@ -82,7 +82,7 @@ namespace Microsoft.PowerToys.Settings.UI.Views
         {
             ViewModel.RefreshEnabledState();
             UpdatePasteAIUIVisibility();
-            _ = UpdateFoundryLocalUIAsync(refreshFoundry: true);
+            _ = UpdateFoundryLocalUIAsync();
         }
 
         private void EnableAdvancedPasteAI() => ViewModel.EnableAI();
@@ -384,7 +384,7 @@ namespace Microsoft.PowerToys.Settings.UI.Views
             }
         }
 
-        private Task UpdateFoundryLocalUIAsync(bool refreshFoundry = false)
+        private Task UpdateFoundryLocalUIAsync()
         {
             string selectedType = ViewModel?.PasteAIProviderDraft?.ServiceType ?? string.Empty;
             bool isFoundryLocal = string.Equals(selectedType, "FoundryLocal", StringComparison.OrdinalIgnoreCase);
@@ -419,12 +419,12 @@ namespace Microsoft.PowerToys.Settings.UI.Views
                 PasteAIProviderConfigurationDialog.IsPrimaryButtonEnabled = false;
             }
 
-            FoundryLocalPicker?.RequestLoad(refreshFoundry);
+            FoundryLocalPicker?.RequestLoad();
 
             return Task.CompletedTask;
         }
 
-        private async Task LoadFoundryLocalModelsAsync(bool refresh = false)
+        private async Task LoadFoundryLocalModelsAsync()
         {
             if (FoundryLocalPanel is null)
             {
@@ -456,9 +456,7 @@ namespace Microsoft.PowerToys.Settings.UI.Views
                     return;
                 }
 
-                IEnumerable<ModelDetails> cachedModelsEnumerable = refresh
-                    ? await provider.GetModelsAsync(ignoreCached: true, cancelationToken: cancellationToken)
-                    : await provider.GetModelsAsync(cancelationToken: cancellationToken);
+                IEnumerable<ModelDetails> cachedModelsEnumerable = await provider.GetModelsAsync(cancelationToken: cancellationToken).ConfigureAwait(false);
 
                 if (cancellationToken.IsCancellationRequested)
                 {
@@ -467,9 +465,12 @@ namespace Microsoft.PowerToys.Settings.UI.Views
 
                 var cachedModels = cachedModelsEnumerable?.ToList() ?? new List<ModelDetails>();
 
-                UpdateFoundryCollections(cachedModels);
-                ShowFoundryAvailableState();
-                RestoreFoundrySelection(cachedModels);
+                DispatcherQueue.TryEnqueue(() =>
+                {
+                    UpdateFoundryCollections(cachedModels);
+                    ShowFoundryAvailableState();
+                    RestoreFoundrySelection(cachedModels);
+                });
             }
             catch (OperationCanceledException)
             {
@@ -478,12 +479,18 @@ namespace Microsoft.PowerToys.Settings.UI.Views
             catch (Exception ex)
             {
                 var errorMessage = $"Unable to load Foundry Local models. {ex.Message}";
-                ShowFoundryUnavailableState(errorMessage);
                 System.Diagnostics.Debug.WriteLine($"[AdvancedPastePage] Failed to load Foundry Local models: {ex}");
+                DispatcherQueue.TryEnqueue(() =>
+                {
+                    ShowFoundryUnavailableState(errorMessage);
+                });
             }
             finally
             {
-                UpdateFoundrySaveButtonState();
+                DispatcherQueue.TryEnqueue(() =>
+                {
+                    UpdateFoundrySaveButtonState();
+                });
             }
         }
 
@@ -672,9 +679,9 @@ namespace Microsoft.PowerToys.Settings.UI.Views
             UpdateFoundrySaveButtonState();
         }
 
-        private async void FoundryLocalPicker_LoadRequested(object sender, FoundryLocalModelPicker.FoundryLoadRequestedEventArgs args)
+        private async void FoundryLocalPicker_LoadRequested(object sender)
         {
-            await LoadFoundryLocalModelsAsync(args?.Refresh ?? false);
+            await LoadFoundryLocalModelsAsync();
         }
 
         private sealed class FoundryDownloadableModel : INotifyPropertyChanged
@@ -1089,7 +1096,7 @@ namespace Microsoft.PowerToys.Settings.UI.Views
                 PasteAIProviderConfigurationDialog.Title = $"{displayName} provider configuration";
             }
 
-            await UpdateFoundryLocalUIAsync(refreshFoundry: true);
+            await UpdateFoundryLocalUIAsync();
             UpdatePasteAIUIVisibility();
             RefreshDialogBindings();
 
@@ -1118,7 +1125,7 @@ namespace Microsoft.PowerToys.Settings.UI.Views
                 : $"{titlePrefix} provider configuration";
 
             UpdatePasteAIUIVisibility();
-            await UpdateFoundryLocalUIAsync(refreshFoundry: false);
+            await UpdateFoundryLocalUIAsync();
             RefreshDialogBindings();
             PasteAIApiKeyPasswordBox.Password = ViewModel.GetPasteAIApiKey(provider.Id, provider.ServiceType);
             await PasteAIProviderConfigurationDialog.ShowAsync();