A declaration's renamed-from moves the value with its trust and opens a window per node,
closed on delivered and, for a returning node-engine, on manifest-reads-changed (ADR 0618).
A value no manifest reads is marked retiring only once no node runs a build that reads it,
asked once, removed only on the Approve (a secret through the seat mesh-vault's retire).
New state in the old sections (ADR 0619), the stream config-events, the tools config_renames,
config_rename_again, config_rename_close, config_retiring and the seat verb renames.
Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig