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.
Matthew Meszaros
0c306ceb73