Build script: - Add Get-RepoRelativePath() helper for cross-platform path handling - Exclude node_modules and bin/obj from solution discovery Verifier: - Replace deprecated SetHandler with SetAction handler pattern - Use GetRequiredValue/GetValue instead of GetValueForOption - Replace SetDefaultValue with DefaultValueFactory property - Remove CommandLineBuilder wrapper (built into framework now) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>