The `schedules` table was already laid down in migration 0001; this
slice adds the Go-side data model, store CRUD with atomic version
bumps, and REST endpoints.
* `store.Schedule` + `RetentionPolicy` + `ScheduleOptions` typed
views (the wire form on the agent side keeps retention/options
as raw JSON since the agent just forwards them to restic).
* Store CRUD: CreateSchedule / GetSchedule / ListSchedulesByHost /
UpdateSchedule / DeleteSchedule. Each mutation bumps
`host_schedule_version` atomically in the same tx via UPSERT on
`host_schedule_version`. SetHostAppliedScheduleVersion records
what the agent has confirmed via schedule.ack (P2-02 will use it).
* REST endpoints under /api/hosts/{id}/schedules + /{sid}:
GET (list, with the version envelope so callers can detect
drift), POST (create), PUT (update — kind is immutable), DELETE.
* Validation: cron expressions parse via robfig/cron/v3 (same
parser the agent will use, so anything that validates here will
fire there); kind ∈ {backup, forget, prune, check} (init/unlock
are operator-only one-shot kinds, not schedulable); backup
schedules require ≥1 path; hooks rejected on non-backup kinds
(spec §14.3).
* All mutations audit-logged.
* Tests: store-level CRUD + version-bump invariants; REST happy
path (create→list→update→delete with version progression); REST
validation table covers each rejection code.
newTestServerWithHub now sets BootstrapToken so the schedules
handler tests can use the existing login flow without a parallel
test-server constructor.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
