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/G1307/spec.md

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+Create the CDS view entity {{P}}I_MILK_TOTAL in package $TMP. Use source tables {{P}}FARM and {{P}}MILK. The report and OData service read this view. The calculation must run in the database.
+
+Use these element names exactly: FARM_ID (key), FARMER, TOTAL_LITRES, DELIVERY_COUNT. Set the authorization check to #NOT_REQUIRED.
+
+Business rules:
+1. Show one row for each farm with total litres greater than 500. Do not show a farm with 500 litres or less. Do not show a farm without a delivery. Do not show a delivery whose farm is not in the farm master.
+2. TOTAL_LITRES is the sum of LITRES for all deliveries of the farm. Use one decimal.
+3. DELIVERY_COUNT is the number of deliveries of the farm.
+4. FARMER is the farmer of the farm.
+5. Group rows by farm. There is exactly one row for each farm.
+
+Constraints:
+- Release target: 8.16 (SAP_BASIS 816).
+- Use Clean ABAP. No ATC priority 1 or 2 findings.
+- Do not change {{P}}FARM and {{P}}MILK.
+
+Acceptance:
+- The view is active and has no syntax error.
+- The hidden tests pass.
+- Write ABAP Unit tests with CL_CDS_TEST_ENVIRONMENT in a global test class.