- remove `docker_compose_raw` from post and patch endpoints, as the compose file is sourced from git and should not be manually settable via the api
- improve the documentation for `docker_compose_domains` (URLs)
- enhanced array validation for `docker_compose_domains` by validating each array field and verifying which fields are allowed
- set a custom array validation error message, as the default message is not really clear
- show an error if the user attempts to set `domains` when the build pack is `dockercompose`
- validate that the `domains` in `docker_compose_domains` are proper URLs and include a valid scheme (`http` or `https`)