- Added resolveWindowsShell to locate Git Bash, scoop installs, and path binaries with a fallback to cmd.exe.
- Updated bash-executor to prevent wrapping user commands in cmd.exe when using fallback shell paths.
- Updated installation script to report optional shell status rather than failing when bash is absent.
Tracked the effective global, project, overlay, or runtime source of shellPath so resolution errors identify the configuration users must edit.
Covered custom agent directories and higher-precedence settings layers with focused regressions.
Fixes#6579
Updated Windows shell resolution errors to point at the canonical config.yml file instead of the migration-only settings.json path.
Added a regression test for the invalid custom shell path error.
Fixes#6579
metaphorics