Native adapter support for Arista DANZ integration

NetBrain does not currently provide a validated or natively supported adapter for integrating with Arista DANZ monitoring fabric devices, requiring customers to build and maintain their own custom adapters. This enhancement would add native support for Arista DANZ within the Integrated Edition, including a certified adapter that can be verified and maintained by the product team. Customers operating Arista DANZ environments would benefit from consistent, supported integration rather than relying on unverified custom-built adapters, reducing maintenance overhead and improving reliability of network visibility data.