fix: correct cross-platform Debug build and test configuration

[DirkDoes]

Purpose of this PR:

Default solution Debug builds compile the application as Debug-Windows but tests as Debug. This selects WindowsUpdatePlatform even on Linux, while the updater registration test expects FallbackUpdatePlatform. Passing linux-x64 leaves both WINDOWS and LINUX defined in the app, where WINDOWS takes precedence.

How to Test:

Run dotnet test WheelWizard.sln. On Linux with .NET 10, also run dotnet test WheelWizard.sln -r linux-x64.

Verified on Windows with build-server reuse disabled and one MSBuild node: before the fix, 605 unit tests passed and the reported registration test failed; after the fix, all 606 unit tests and 65 UI tests passed. MSBuild evaluation confirms that linux-x64 now defines LINUX in both projects, without WINDOWS. Native Linux execution remains unverified because local Ubuntu only has .NET 8; this repository requires .NET 10.

What Has Been Changed:

• Map the application's solution Debug configuration to Debug instead of Debug-Windows.
• Match the application's runtime-dependent WINDOWS, LINUX, and MACOS symbols in the unit test project.

Without an explicit runtime, both projects use the fallback updater. Release mappings remain unchanged; official releases explicitly specify their runtime. Existing CI tests Release and misses this default Debug mismatch.

Related Issue Link:

No linked issue; implements the supplied patch for the reported Linux test failure.

Checklist before merging

• You have created relevant tests

No new tests were added: the existing updater registration test reproduces the failure and passes with this fix.

Summary by CodeRabbit

• Build & Compatibility
  • Build settings now align with Windows, Linux, and macOS targets, improving platform-specific build consistency.
  • Debug solution builds now use the standard Debug configuration across the solution.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Organization UI
• Review profile: ASSERTIVE
• Plan: Advanced
• Run ID: ae6a01b4-adfc-4982-ac31-94f22ed905ad

📥 Commits

Reviewing files that changed from the base of the PR and between 14c0c7c and 1f4f85d.

📒 Files selected for processing: 2

• WheelWizard.Test/WheelWizard.Test.csproj
• WheelWizard.sln

Included review availability: This review used your included allowance. Your plan provides up to 4 included reviews per hour; 3 remain after this review.

📝 Walkthrough

The test project adds platform-specific compilation constants for listed runtime identifiers. The solution maps the WheelWizard Debug configuration to Debug instead of Debug-Windows.

Changes: Build Configuration

Layer / File(s)	Summary
Platform build settings WheelWizard.Test/WheelWizard.Test.csproj, WheelWizard.sln	The test project defines WINDOWS, LINUX, or MACOS based on RuntimeIdentifier. The solution maps the WheelWizard Debug configuration to Debug for both active configuration and build.

Priority: ➖ Normal

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Suggested reviewers: patchzyy

Merge Risk: ⚪ Minimal · up to 1f4f8

The default Debug configuration now aligns application and test fallback behavior, and no actionable merge-blocking issue was identified.

Pre-merge checks: 5

Passed checks: 5 passed

Check name	Status	Explanation
Title check		The title clearly and concisely describes the main change: correcting cross-platform Debug build and test configuration.
Description check		The description includes all template sections, explains the failure and fix, documents testing results and limitations, and states that no new tests were added.
Docstring Coverage		No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

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_{A rabbit checks each build with care
Three platform flags are waiting there
Debug maps to Debug in line
The settings match, the builds align
I hop away; the configs shine}

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