MSVC locator missing

Doctor could not find vswhere.exe under ProgramFiles(x86)/Microsoft Visual Studio/Installer. This required Windows toolchain check fails.

#Common causes

• Visual Studio Build Tools or its installer is absent from the expected installation path.

#Fixes

• Run winget install Microsoft.VisualStudio.2022.BuildTools --override '--add Microsoft.VisualStudio.Workload.VCTools --includeRecommended --passive', then rerun ara-export doctor --platform windows.

• Code: ARA-EXP-WIN-001 (slot 8029)

• Constant: export::WIN_001

• Reported by: ara-export