feat: add list/insert/remove RPCs for NVL domain health records

[jayzhudev]

Is this a new feature, an enhancement, or a change to existing functionality?

New Feature

How would you describe the priority of this feature request

Medium

Please provide a clear description of problem this feature solves

NICo core does not receive, store, and present NVLink domain health alerts today. External health services should be able to send NVL domain health alert to NICo for consumption by, e.g.: admin-cli and web-ui for improved observability.

Feature Description

NICo core shall implement RPCs for insertion/removal/listing NVLink health records (alerts) and store them for the admin-cli, web-ui, and external API callers to consume.

Describe your ideal solution

• Follow the implementation pattern of existing heath record RPCs in forge.proto such as Insert/List/RemoveSwitchHealthReport for Insert/List/RemoveNVLinkDomainHealthReport at the API layer.
• Store the records into a new DB table and add support in the admin-cli and web-ui for the list/remove paths.
• Only "unhealthy" records should be received and are for informational only - no auto-remediation is assumed or required.

Describe any alternatives you have considered

No response

Additional context

No response

Code of Conduct

• I agree to follow NCX Infra Controller's Code of Conduct
• I have searched the open feature requests and have found no duplicates for this feature request