feat: update env handling and add orchestration support (#65)

* refactor(shell): improve env var parsing and quoting logic, update docker-compose container names, and add GCP image upload script

* fix: update orchestration env service URLs to use dibbs container names

* fix: update wizard messages and clone branch in provision script

- Remove extra spaces and add quotes to schema options in wizard prompts.
- Clone dibbs-vm using the alis/gcp branch.
- Adjust environment variable formatting in provision.sh.

* chore(provision): remove deprecated docker compose vars export to .bashrc

* feat: export DIBBS_SERVICE and DIBBS_VERSION in bashrc

* feat: add macOS support for tar compression

Use gtar on macOS to compress the raw disk image, ensuring compatibility across systems.

* fix: remove branch specification from dibbs-vm clone command

The change removes the hardcoded branch (-b alis/gcp) flag to clone the default branch instead.

Author: alismx