Add telemetry dashboard and automatic server names; record Workshop 0.0.137

services/telemetry-worker/migrations/0003_dashboard_receipts.sql

@@ -0,0 +1,3 @@
+-- Bounded per-server lookup of the last stored report, including late events
+-- that did not change the authoritative mission snapshot.
+CREATE INDEX events_server_receipt ON events(server_id, received_at DESC, id DESC);