Each service section lost its container, credential and metrics detail to a
Host setup section on its own implementation page, unchanged apart from links.
The four agentAuth option rows that sat above the page title moved into the
telemetry page's metrics option table.
credentials.md drops the target-shape framing and keeps the rules, where a
secret lives, the swarm- and hive-level secrets and how to add one. The queue
responder's keys, per-principal identities, how a reader reaches the store, the
store UI's login and where the root lives move to
4-implementation/swarm/credentials.md. The per-secret reference moves to
4-implementation/swarm/credentials-reference.md. Links and comments follow.
Account minting, knowledge sync, the archetype refresh, the matrix appservice
flow and the SSO secret delivery move to pages under 4-implementation/swarm.
Each handbook page keeps what an operator does or sees, with a pointer.
