fix: add statement-breakpoint to schedule_event enum migration (#86)

ALTER TYPE ADD VALUE cannot run inside a transaction in older PostgreSQL
versions. The missing breakpoint caused migration 0033 to be skipped in
production, leaving the 'schedule_event' enum value absent.

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

drizzle/0033_add_schedule_event_type.sql

@@ -1,5 +1,5 @@
 -- Add 'schedule_event' to event_type enum for non-scoring calendar entries
 -- (e.g. F1/IndyCar races that are shown in the schedule but don't award points)
--- PostgreSQL does not support ADD VALUE in a transaction, but it does support it directly.
-
+-- PostgreSQL does not support ADD VALUE in a transaction, so we use a breakpoint.
+--> statement-breakpoint
 ALTER TYPE "event_type" ADD VALUE IF NOT EXISTS 'schedule_event';