feat: limits (#559)

* feat: workflow run limits

* fix: resource exhausted 429

* feat: event limit

* feat: worker limit

* fix: sensible error

* fix: pb

* feat: expose limits api

* feat: default limits

* feat: add enable alert option

* feat: slack and email alerts

* fix: cron interval

* feat: make metered util

* wip: schedules and crons

* chore: squash migration

* fix: select or insert

* fix: remove unfinished meter

* chore: atlas migration

* fix: template format

* fix: shared ErrResourceExhausted

* feat: cache

* fix: limit can be nil

* fix: clarification

* fix: close meter ticker

* fix: friendly error for child workflows

hack/db/atlas-apply.sh

@@ -40,10 +40,13 @@ if [[ ! "$DATABASE_URL" =~ sslmode ]]; then
   fi
 fi
 
+echo "DATABASE_URL: $DATABASE_URL"
 # Check for prisma migrations
 MIGRATION_NAME=$(psql "$DATABASE_URL" -t -c "SELECT migration_name FROM _prisma_migrations ORDER BY started_at DESC LIMIT 1;" 2>/dev/null | xargs)
 MIGRATION_NAME=$(echo $MIGRATION_NAME | cut -d'_' -f1)
 
+echo "Migration name: $MIGRATION_NAME"
+
 if [ $? -eq 0 ] && [ -n "$MIGRATION_NAME" ]; then
   echo "Using existing prisma migration: $MIGRATION_NAME"