* feat: support passenv
* refactor: environment-pass and spaces
* docs: document environment pass
* Add unit test for passing through awkward env variable values
* Remove unused as_shell_commands method from environment
* Fix passthrough edge case by avoiding bash for passthrough assignments
* Fix mypy error in test
* Fix unit test
* Apply suggestions from code review
Co-authored-by: Joe Rickerby <joerick@mac.com>