Unblock build-and-test by normalizing SetupForm whitespace

[Copilot]

Summary

build-and-test was failing at the formatting gate due to whitespace violations in src/Ows.Setup/SetupForm.cs. This PR applies formatter-only edits to that file so CI passes without changing behavior.

• Root cause
  • dotnet format --verify-no-changes --severity warn reported whitespace issues in object initializer wrapping and lambda-body indentation.
• Scoped change
  • Whitespace/indentation normalization in SetupForm.cs only.
  • No logic, API, or runtime-path changes.
• Representative diff

var services = new Button { Text = "Open Windows Services", Location = ContentPoint(0, 210), Size = new Size(160, 30) };

var thread = new Thread(() => {
    try {
        using var dialog = new FolderBrowserDialog();
        // ...
    } catch (Exception exception) {
        completion.SetException(exception);
    }
});

Boundaries

• Local-first and offline verification remain intact.
• No LMS, IDE-plugin, surveillance, or automatic misconduct scope was added.
• Privacy/security documentation was updated if needed.
• Roadmap and continuity notes were updated if capability changed.

Validation

• dotnet build OWS.sln -nologo
• dotnet test OWS.sln -nologo
• git diff --check