Reserve dedicated worker allocation for the control plane, auto-promote spare capacity when needed, and keep risky or quarantined mailboxes off clean shared workers.
Go CI fails on golangci-lint's gofmt check. Ran gofmt -w against
every file the linter named plus a handful of others that drifted
during the autonomous-fleet work. No semantic changes — alignment
of struct field whitespace and one mis-indented import block.
gofmt -l ./... is now empty; go build + go vet are clean.
POST /api/v1/internal/worker/heartbeat now inserts a row into the
workers table the first time an unknown worker_id checks in. Tier and
egress_kind come from the heartbeat body; subsequent heartbeats just
keep ip_addr fresh.
Means provisioned workers self-register without admin clicks — the
state machine waits for all 16 expected UUIDv5(IP) workers to ping in
during the verify step, then marks the job completed.
tierToColumns collapses the higher-level (shared_free / shared_premium /
dedicated) name down into the existing (worker_type, free_tier) columns
so the rest of the assignment logic keeps working unchanged.
New storage_backends table is the runtime inventory of pluggable
infrastructure choices (KMS, encrypted_keys, blob, eventbus, cache).
Each kind has exactly one active row, enforced via a partial unique
index. Read-only rows are env-var driven; UI-mutable rows can be
flipped via SetActive.
settings.Registrar reflects boot-time backend choices into the table
so the admin UI sees what's actually running.
New admin endpoints under /admin/settings/backends:
GET /settings/backends?kind=...
GET /settings/backends/active/:kind
POST /settings/backends/:id/activate
New internal endpoints under /api/v1/internal:
GET /worker/config - workers fetch runtime config on boot
POST /worker/heartbeat - liveness ping
(DEK endpoints added in the encryptedkeys commit.)
handler.Handler grows EncryptedKeys + StorageBackendRepo fields.
5 registrar tests cover create / update-and-activate / skip-when-active /
lookup-error propagation / RegisterAll stop-on-first-error using a
mock repository.