Pipeline controller: plan 2 (hard +, error +50 %), backlog throttle, 2 trajectory workers, stop rules, summaries every 50; budget reserve

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

tasks_gen/train/G1012/reference/i_milk_total.ddls.asddls

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+@AccessControl.authorizationCheck: #NOT_REQUIRED
+@EndUserText.label: 'Milk totals per farm'
+define view entity {{P}}I_MILK_TOTAL
+  as select from {{p}}milk as milk
+    inner join   {{p}}farm as farm on farm.farm_id = milk.farm_id
+{
+  key milk.farm_id       as farm_id,
+      farm.farmer        as farmer,
+      sum( milk.litres ) as total_litres,
+      count( * )         as delivery_count
+}
+group by
+  milk.farm_id,
+  farm.farmer
+having
+  sum( milk.litres ) > 500