feat: enhance dry run diff view to show friendly names (resolves #51)

[Tiya22gif]

Related Issue

Closes #51

Proposed Changes

• Updated Engine.PrintDiffAsync to use a newly implemented FormatFriendlyName helper.
• Implemented GetFriendlyName in SystemSettingsService and ISystemSettingsService to resolve raw registry paths into friendly internal catalog keys (e.g., dark_mode, taskbar_alignment).
• Formatted App Package Manager strings into friendly formats like App (winget): vscode.
• Updated failing unit tests in EngineTest.cs to match the newly implemented friendly string formats.

Example output now shows:

• System Setting: show_file_extensions
• App (scoop): git
• Registry Tweak: HKCU\Software\WinHomeTest -> TestValue

I also updated the existing unit tests to validate the new diff output formatting.

Type of Change

• 🐛 Bug fix
• ✨ New feature
• 📖 Documentation
• 🧪 Testing
• 🛠️ Refactoring
• 🚀 DevOps/CI

Screenshots / Logs (if applicable)

Testing & Verification

• [✅] I have run dotnet test and all 60+ cross-platform tests passed.
• [✅] I have verified the changes on a Windows environment (if applicable).
• [] I have added new unit tests to cover my changes.

GSSOC 2026 Checklist

• [✅] I have read the Contribution Guidelines.
• [✅] My code is formatted correctly (I have run dotnet format).
• [✅] I have linked the PR to an approved issue.
• [✅] I understand that a maintainer must apply the gssoc:approved label for this PR to count for points.

[DotDev262]

I need a screenshot of the execution of the diff function , and it seems you have edited the unit test but didn't mark it in the pull request

[Tiya22gif]

Thanks for the review @DotDev262 !

I’ll add a screenshot/log of the --diff execution output to demonstrate the updated human-readable formatting.

You’re also correct about the unit tests — I updated the existing tests to match the new friendly-name output format, but I forgot to explicitly mention that in the PR checklist/comment. I’ll update the PR description to reflect the test modifications clearly.

[DotDev262]

The screenshot is not the output of the diff function rather its the dotnet build

[Tiya22gif]

Okay, please give me some time @DotDev262. I hadn’t taken screenshots earlier, so I need to re-run and verify the diff output again.

After that, I’ll upload all the required screenshots/logs and update the PR details accordingly.

[DotDev262]

Any updates ?