feat(install): suggest --all flag in incompatibility error
Merged
TO
3mo ago+55+55+01234567890123456789-2-2-0123456789
When a package exists but has no compatible version, the error now additionally suggests:
To see why this package is incompatible: numan search <name> --all
Helps newcomers understand WHY a package won't install. 14 resolve tests pass.