<!-- 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
```
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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
- [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
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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
