Refactor AI handling and improve code organization

- Removed ARM64 architecture check in `CheckAiAvailability`
  to simplify AI availability logic.
- Centralized JSON serialization settings in
  `AiAvailabilityCacheService.cs` using `SerializerOptions`.
- Refactored JSON serialization to use the new options for
  consistency and maintainability.
- Moved `AiCapabilityCache` to its own file, `AiCapabilityCache.cs`,
  with a copyright header for better organization.
- Updated `ImageResizer.exe` path in `main.cpp` to reflect its
  new location in the `WinUI3Apps` folder.
- Added `ai_detection.h` to `runner.vcxproj` and its filter file
  to support new AI detection functionality.

src/modules/imageresizer/ui/App.xaml.cs

@@ -156,12 +156,6 @@ namespace ImageResizer
         {
             try
             {
-                // First check if the platform is ARM64 - AI Super Resolution only works on ARM64
-                if (RuntimeInformation.ProcessArchitecture != Architecture.Arm64)
-                {
-                    return AiAvailabilityState.NotSupported;
-                }
-
                 // Check Windows AI service model ready state
                 // it's so slow, why?
                 var readyState = Services.WinAiSuperResolutionService.GetModelReadyState();

src/modules/imageresizer/ui/Services/AiAvailabilityCacheService.cs

@@ -22,6 +22,11 @@ namespace ImageResizer.Services
         private const string CacheFileName = "ai_capabilities.json";
         private const int CacheVersion = 1;
 
+        private static readonly JsonSerializerOptions SerializerOptions = new JsonSerializerOptions
+        {
+            WriteIndented = true,
+        };
+
         private static string CachePath => Path.Combine(
             Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
             "Microsoft",
@@ -82,10 +87,7 @@ namespace ImageResizer.Services
                     Directory.CreateDirectory(dir);
                 }
 
-                var json = JsonSerializer.Serialize(cache, new JsonSerializerOptions
+                var json = JsonSerializer.Serialize(cache, SerializerOptions);
-                {
-                    WriteIndented = true,
-                });
                 File.WriteAllText(CachePath, json);
 
                 Logger.LogInfo($"AI cache saved: {state}");
@@ -120,20 +122,4 @@ namespace ImageResizer.Services
             return true;
         }
     }
-
-    /// <summary>
-    /// Data model for AI capability cache file.
-    /// </summary>
-    internal sealed class AiCapabilityCache
-    {
-        public int Version { get; set; }
-
-        public int State { get; set; }
-
-        public string WindowsBuild { get; set; }
-
-        public string Architecture { get; set; }
-
-        public string Timestamp { get; set; }
-    }
 }

src/modules/imageresizer/ui/Services/AiCapabilityCache.cs

@@ -0,0 +1,22 @@
+// 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.
+
+namespace ImageResizer.Services
+{
+    /// <summary>
+    /// Data model for AI capability cache file.
+    /// </summary>
+    internal sealed class AiCapabilityCache
+    {
+        public int Version { get; set; }
+
+        public int State { get; set; }
+
+        public string WindowsBuild { get; set; }
+
+        public string Architecture { get; set; }
+
+        public string Timestamp { get; set; }
+    }
+}

src/runner/main.cpp

@@ -105,9 +105,9 @@ void DetectAiCapabilitiesAsync(bool skipSettingsCheck)
                 }
             }
 
-            // Get ImageResizer.exe path
+            // Get ImageResizer.exe path (located in WinUI3Apps folder)
             std::wstring imageResizerPath = get_module_folderpath();
-            imageResizerPath += L"\\modules\\ImageResizer\\ImageResizer.exe";
+            imageResizerPath += L"\\WinUI3Apps\\PowerToys.ImageResizer.exe";
 
             if (!std::filesystem::exists(imageResizerPath))
             {

src/runner/runner.vcxproj

@@ -77,6 +77,7 @@
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="ActionRunnerUtils.h" />
+    <ClInclude Include="ai_detection.h" />
     <ClInclude Include="auto_start_helper.h" />
     <ClInclude Include="bug_report.h" />
     <ClInclude Include="centralized_hotkeys.h" />

src/runner/runner.vcxproj.filters

@@ -81,6 +81,9 @@
     <ClInclude Include="ActionRunnerUtils.h">
       <Filter>Utils</Filter>
     </ClInclude>
+    <ClInclude Include="ai_detection.h">
+      <Filter>Utils</Filter>
+    </ClInclude>
     <ClInclude Include="resource.h">
       <Filter>Utils</Filter>
     </ClInclude>