erpc

feat(observability): accurate catch-up waits + split catch-up/failover + errors-by-type (#911)

docs(monitoring): add catch-up metrics analysis guide + link from AGENTS.md

feat(clients/grpc): apply jsonRpc.headers on gRPC upstream requests (#910)

feat(network): cluster-based served tip with strict monotonic clamp and less redundant empty result retries (#900)

feat(data/grpc): report earliest/latest/finalized block heads per network (#909)