[CmdPal] Refactor ActionRuntime initialization to avoid repeated delays on failure (#40229)

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fix/what does it change/how was it tested (even manually, if necessary)?
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## Summary of the Pull Request
This PR addresses an issue where ActionRuntime initialization may
repeatedly incur delays and fail during runtime usage, especially when
the OS supports the API but action creation fails.

### Fix:
Introduced ActionRuntimeManager to:

- Manage a shared static ActionRuntime instance
- Perform initialization once, at extension loading time
- Store the result (success or failure) to avoid repeated creation
attempts

Consumers now:

- ActionRuntimeManager.InstanceAsync.GetAwaiter().GetResult()

Initialization will only be attempted up to 3 times. After that, runtime
is marked as unavailable and no further attempts are made.
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## PR Checklist

- [x] **Closes:** #40228
- [ ] **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

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wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Actions/ActionRuntimeManager.cs

@@ -0,0 +1,47 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using ManagedCommon;
+using Windows.AI.Actions;
+
+namespace Microsoft.CmdPal.Ext.Indexer.Data;
+
+public static class ActionRuntimeManager
+{
+    private static readonly Lazy<Task<ActionRuntime>> _lazyRuntime = new(InitializeAsync);
+
+    public static Task<ActionRuntime> InstanceAsync => _lazyRuntime.Value;
+
+    private static async Task<ActionRuntime> InitializeAsync()
+    {
+        // If we tried 3 times and failed, should we think the action runtime is not working?
+        // then we should not use it anymore.
+        const int maxAttempts = 3;
+
+        for (var attempt = 1; attempt <= maxAttempts; attempt++)
+        {
+            try
+            {
+                var runtime = ActionRuntimeFactory.CreateActionRuntime();
+                await Task.Delay(500);
+
+                return runtime;
+            }
+            catch (Exception ex)
+            {
+                Logger.LogError($"Attempt {attempt} to initialize ActionRuntime failed: {ex.Message}");
+
+                if (attempt == maxAttempts)
+                {
+                    Logger.LogError($"Failed to initialize ActionRuntime: {ex.Message}");
+                }
+            }
+        }
+
+        return null;
+    }
+}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/IndexerCommandsProvider.cs

@@ -2,9 +2,11 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using Microsoft.CmdPal.Ext.Indexer.Data;
 using Microsoft.CmdPal.Ext.Indexer.Properties;
 using Microsoft.CommandPalette.Extensions;
 using Microsoft.CommandPalette.Extensions.Toolkit;
+using Windows.Foundation.Metadata;
 
 namespace Microsoft.CmdPal.Ext.Indexer;
 
@@ -17,6 +19,10 @@ public partial class IndexerCommandsProvider : CommandProvider
         Id = "Files";
         DisplayName = Resources.IndexerCommandsProvider_DisplayName;
         Icon = Icons.FileExplorer;
+        if (ApiInformation.IsApiContractPresent("Windows.AI.Actions.ActionsContract", 4))
+        {
+            _ = ActionRuntimeManager.InstanceAsync;
+        }
     }
 
     public override ICommandItem[] TopLevelCommands()

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Pages/ActionsListContextItem.cs

@@ -2,10 +2,12 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Threading;
 using System.Threading.Tasks;
+using ManagedCommon;
 using Microsoft.CmdPal.Ext.Indexer.Commands;
 using Microsoft.CmdPal.Ext.Indexer.Data;
 using Microsoft.CmdPal.Ext.Indexer.Properties;
@@ -15,7 +17,7 @@ using Windows.System;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Pages;
 
-internal sealed partial class ActionsListContextItem : CommandContextItem
+internal sealed partial class ActionsListContextItem : CommandContextItem, IDisposable
 {
     private readonly string fullPath;
     private readonly List<CommandContextItem> actions = [];
@@ -41,20 +43,24 @@ internal sealed partial class ActionsListContextItem : CommandContextItem
 
     private void UpdateMoreCommands()
     {
-        try
+        lock (UpdateMoreCommandsLock)
         {
-            lock (UpdateMoreCommandsLock)
+            if (actionRuntime == null)
             {
-                if (actionRuntime == null)
-                {
-                    actionRuntime = ActionRuntimeFactory.CreateActionRuntime();
-                    Task.Delay(500).Wait();
-                }
-
-                actionRuntime.ActionCatalog.Changed -= ActionCatalog_Changed;
-                actionRuntime.ActionCatalog.Changed += ActionCatalog_Changed;
+                actionRuntime = ActionRuntimeManager.InstanceAsync.GetAwaiter().GetResult();
             }
 
+            if (actionRuntime == null)
+            {
+                return;
+            }
+
+            actionRuntime.ActionCatalog.Changed -= ActionCatalog_Changed;
+            actionRuntime.ActionCatalog.Changed += ActionCatalog_Changed;
+        }
+
+        try
+        {
             var extension = System.IO.Path.GetExtension(fullPath).ToLower(CultureInfo.InvariantCulture);
             ActionEntity entity = null;
             if (extension != null)
@@ -85,9 +91,20 @@ internal sealed partial class ActionsListContextItem : CommandContextItem
                 MoreCommands = [.. actions];
             }
         }
-        catch
+        catch (Exception ex)
         {
-            actionRuntime = null;
+            Logger.LogError($"Error updating commands: {ex.Message}");
+        }
+    }
+
+    public void Dispose()
+    {
+        lock (UpdateMoreCommandsLock)
+        {
+            if (actionRuntime != null)
+            {
+                actionRuntime.ActionCatalog.Changed -= ActionCatalog_Changed;
+            }
         }
     }
 }