Allow the use of URLs instead of IPs in sidecar-node linking

Allow the use of URLs instead of IPs in sidecar-node linking.

Background: The DevOps team asks if it’s possible to allow URLs in the node address configuration. Right now, it accepts only IP addresses, and it creates problems for automated deployments in dynamic environments.

Current scenario: Interpret the text from config file as IpAddress.

Required change: To also allow URLs.

Start by locating the sidecar-node address configuration handling where config text is interpreted as IpAddress. Trace the validation and linking entry point, then verify that a URL in the node address configuration is accepted and usable for linking, while existing IP addresses continue to work.

Written by the indexing model from the issue text.