anti
6657d3e097
Introduces the master-side persistence layer for swarm mode: - SwarmHost: enrolled worker metadata, cert fingerprint, heartbeat. - DeckyShard: per-decky host assignment, state, last error. Repo methods are added as default-raising on BaseRepository so unihost deployments are untouched; SQLModelRepository implements them (shared between the sqlite and mysql subclasses per the existing pattern).