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/G1033/spec.md

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+# 1. Goal
+
+A company collects used cooking oil from restaurants. The company pays the
+restaurants for the oil. Each collection is recorded with the restaurant, the
+collection date and the volume in litres. A settlement program calls the class
+once for each settlement run. The class returns one row for each restaurant.
+
+# 2. Open questions
+
+None.
+
+# 3. Context
+
+- The class {{P}}OIL_SETTLEMENT does not exist. Create it in package $TMP.
+- The caller sends a list of collection records. One restaurant can appear in
+  more than one record.
+- The class does not read the database. All data comes from the caller.
+
+# 4. Contract
+
+- Create the class {{P}}OIL_SETTLEMENT in package $TMP.
+- The class is public and final. It has a public constructor without parameters.
+- The class has these public types:
+  - ty_restaurant: character, length 10.
+  - ty_collection: structure with the components restaurant (ty_restaurant),
+    collected_on (date) and litres (integer).
+  - tt_collections: table of ty_collection. The table can hold more than one row
+    for the same restaurant.
+  - ty_settlement: structure with the components restaurant (ty_restaurant),
+    total_litres (integer), round_count (integer) and last_collection (date).
+  - tt_settlements: table of ty_settlement.
+- The class has this public method:
+  settle
+    IMPORTING it_collections TYPE tt_collections
+    RETURNING VALUE(rt_settlements) TYPE tt_settlements.
+- Do not add other public methods.
+
+# 5. Business rules
+
+1. Two restaurant names are the same when they are equal after you remove all
+   spaces and convert the letters to upper case. A restaurant is empty when it
+   contains only spaces.
+2. A collection record is valid when its restaurant is not empty and its volume
+   is greater than zero.
+3. Ignore every record that is not valid. An ignored record does not change a
+   total and it does not increase a counter.
+4. The result has exactly one row for each restaurant that has at least one
+   valid record.
+5. A result row has these values:
+   - restaurant: the name of the valid records, without spaces and in upper case.
+   - total_litres: the sum of the volumes of the valid records.
+   - round_count: the number of the valid records.
+   - last_collection: the latest collection date of the valid records.
+6. The result is sorted in ascending order of restaurant.
+7. If there is no valid record, the result is empty.
+
+# 6. Constraints
+
+- Release target: SAP_BASIS 816 (ABAP Platform 2025).
+- Coding standards: Clean ABAP. Method length below 40 statements. No global
+  variables. No comment that restates the code.
+- Out of scope: no database access, no ALV, no dynpro, no RAP.
+
+# 7. Acceptance
+
+- The class is active and has no syntax error.
+- The hidden tests pass.
+- Write your own ABAP Unit tests for the class.