feat: registration api/controller for rdap/whois

[zachsmith1]

This pull request makes significant improvements to how domain registration and status information are represented and managed in the API. The changes introduce a new, more detailed Registration struct to replace the older DomainRegistrarStatus, add support for authoritative nameservers and apex domain identification, and update the CRD and deepcopy logic accordingly. These updates make the domain API more expressive and future-proof, especially for handling RDAP/WHOIS data.

Domain Data Model Enhancements

• Introduced a new Registration struct in domain_types.go that captures comprehensive domain registration details, including registrar/registry info, lifecycle dates, statuses, DNSSEC, contacts, and abuse contacts. The old DomainRegistrarStatus and DNSSECStatus structs were removed.
• Added support for authoritative nameservers and apex domain identification in DomainStatus, including a new Nameserver struct and an Apex boolean.
• Extended domain status conditions and reasons to track domain validity, including new constants for valid/invalid apex domain states.

CRD Updates

• Updated the CRD YAML to reflect new fields for apex, nameservers, and registration, including detailed schema for nested objects (registrar, registry, contacts, DNSSEC, etc.).
• Added autogenerated deepcopy methods for all new structs (Registration, RegistrarInfo, RegistryInfo, Nameserver, NameserverIP, ContactSet, Contact, AbuseContact, DNSSECInfo, DSRecord), and removed deepcopy logic for deprecated structs.