Issue tracks follow-ups to the merge of #18860

TODO

• Server-side filtering of "Node SharedInformer" such that only the local node is cached/listed/watched. cc @aanm
• Tune back "relist" interval for generated shared informers cc @aanm
• Support passwords for peering BGP Control Plane Follow Ups #19376 (comment)
• Move to CiliumNode object, this was not possible due to labels cc @christarazi
• Discuss whether to continue instantiating shared informers or fall back to K8sWatchers patterns cc @christarazi @aanm
• Split "user facing" Sphinx docs and "developer phasing" markdown docs in such a way that maintaing both is not a burden. cc @qmonnet
• Implement graceful restart cc @YutaroHayakawa
• Revisit conditions where a BGP server recreation is necessary BGP Control Plane  #18860 (comment) cc @YutaroHayakawa
• Better operational state visibility BGP Control Plane  #18860 (comment) cc @YutaroHayakawa
• Consider auto-gen of router ID in IPv6 single stack, consider cluster-wide router-id IPAM BGP Control Plane  #18860 (comment) cc @arianvp