feat: Add Domain GQL schema and resolver

[fregataa]

Add GQL Relay domain query schema

Example

query DomainQuery {
    domain_nodes(
        order: "created_at"
        # filter: "name like \"def\"",
        ) {
            edges {
                node {
                    id
                    name
                    allowed_vfolder_hosts
                    allowed_docker_registries
                    scaling_groups {
                        edges {
                            node {
                                name
                                is_active
                                is_public
                                created_at
                            }
                        }
                    }
                }
            }
    }
}

Checklist: (if applicable)

• Milestone metadata specifying the target backport version

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📚 Documentation preview 📚: https://sorna--2934.org.readthedocs.build/en/2934/

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📚 Documentation preview 📚: https://sorna-ko--2934.org.readthedocs.build/ko/2934/

[fregataa]

• feat: Add Domain GQL schema and resolver #2934 👈
• chore: Add RBAC model schema #2933
• chore: Add Domain & Project RBAC apis #2920
• main

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