Add standard CLI support for Image Resizer (#44287)

<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request
Adds a dedicated command-line interface (CLI) executable for Image
Resizer (PowerToys.ImageResizerCLI.exe)

## Command
`PowerToys.ImageResizerCLI.exe [options] [files...]`

## Options (High Level)

| Option (aliases) | Description |
|-----------------|-------------|
| `--help` | Show help |
| `--show-config` | Print current effective configuration |
| `--destination`, `-d` | Output directory (optional) |
| `--width`, `-w` | Width |
| `--height`, `-h` | Height |
| `--unit`, `-u` | Unit (Pixel / Percent / Inch / Centimeter) |
| `--fit`, `-f` | Fit mode (Fill / Fit / Stretch) |
| `--size`, `-s` | Preset size index (supports `0` for Custom) |
| `--shrink-only` | Only shrink (do not enlarge) |
| `--replace` | Replace original |
| `--ignore-orientation` | Ignore EXIF orientation |
| `--remove-metadata` | Strip metadata |
| `--quality`, `-q` | JPEG quality (1–100) |
| `--keep-date-modified` | Preserve source last-write time |
| `--file-name` | Output filename format |

## Example usage
```
# Show help
PowerToys.ImageResizerCLI.exe --help

# Show current config
PowerToys.ImageResizerCLI.exe --show-config

# Resize with explicit dimensions
PowerToys.ImageResizerCLI.exe --width 800 --height 600 .\image.png

# Use preset size 0 (Custom) and output to a folder
PowerToys.ImageResizerCLI.exe --size 0 -d "C:\Output" .\photo.png

# Preserve source LastWriteTime
PowerToys.ImageResizerCLI.exe --width 800 --height 600 --keep-date-modified -d "C:\Output" .\image.png
```

![imageresize](https://github.com/user-attachments/assets/437fc1c2-b655-4168-9c85-b1561eeef3b4)

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## PR Checklist

- [ ] Closes: #xxx
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issues) -->
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [x] **Tests:** Added/updated and all pass
- [x] **Localization:** All end-user-facing strings can be localized
- [x] **Dev docs:** Added/updated
- [x] **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

<!-- Provide a more detailed description of the PR, other things fixed,
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

src/modules/imageresizer/ImageResizerCLI/ImageResizerCLI.csproj

@@ -0,0 +1,28 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <!-- Look at Directory.Build.props in root for common stuff as well -->
+  <Import Project="..\..\..\Common.Dotnet.CsWinRT.props" />
+  <Import Project="..\..\..\Common.SelfContained.props" />
+  <Import Project="..\..\..\Common.Dotnet.AotCompatibility.props" />
+
+  <PropertyGroup>
+    <AssemblyTitle>PowerToys.ImageResizerCLI</AssemblyTitle>
+    <AssemblyDescription>PowerToys Image Resizer Command Line Interface</AssemblyDescription>
+    <Description>PowerToys Image Resizer CLI</Description>
+    <OutputType>Exe</OutputType>
+    <Platforms>x64;ARM64</Platforms>
+    <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
+    <AppendRuntimeIdentifierToOutputPath>false</AppendRuntimeIdentifierToOutputPath>
+    <OutputPath>..\..\..\..\$(Platform)\$(Configuration)\WinUI3Apps\</OutputPath>
+    <AssemblyName>PowerToys.ImageResizerCLI</AssemblyName>
+    <NoWarn>$(NoWarn);SA1500;SA1402;CA1852</NoWarn>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ui\ImageResizerUI.csproj" />
+  </ItemGroup>
+
+  <!-- Force using WindowsDesktop runtime to ensure consistent dll versions with other projects -->
+  <ItemGroup>
+    <FrameworkReference Include="Microsoft.WindowsDesktop.App.WPF" />
+  </ItemGroup>
+</Project>

src/modules/imageresizer/ImageResizerCLI/Program.cs

@@ -0,0 +1,50 @@
+// 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.Globalization;
+using System.Text;
+
+using ImageResizer.Cli;
+using ManagedCommon;
+
+namespace ImageResizerCLI;
+
+internal static class Program
+{
+    private static int Main(string[] args)
+    {
+        try
+        {
+            string appLanguage = LanguageHelper.LoadLanguage();
+            if (!string.IsNullOrEmpty(appLanguage))
+            {
+                System.Threading.Thread.CurrentThread.CurrentUICulture = new CultureInfo(appLanguage);
+            }
+        }
+        catch (CultureNotFoundException)
+        {
+            // Ignore invalid culture and fall back to default.
+        }
+
+        Console.InputEncoding = Encoding.Unicode;
+
+        // Initialize logger to file (same as other modules)
+        CliLogger.Initialize("\\ImageResizer\\Logs");
+        CliLogger.Info($"ImageResizerCLI started with {args.Length} argument(s)");
+
+        try
+        {
+            var executor = new ImageResizerCliExecutor();
+            return executor.Run(args);
+        }
+        catch (Exception ex)
+        {
+            CliLogger.Error($"Unhandled exception: {ex.Message}");
+            CliLogger.Error($"Stack trace: {ex.StackTrace}");
+            Console.Error.WriteLine($"Fatal error: {ex.Message}");
+            return 1;
+        }
+    }
+}