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/G1055/spec.md

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+# 1. Goal
+A community garden association rents garden plots to its tenants and charges an
+annual rent for each plot. The billing program of the association calls one
+calculation for each plot. The program needs the rent and one reason code for
+each plot.
+
+# 2. Open questions
+None.
+
+# 3. Context
+- The class {{P}}GARDEN_RENT does not exist. Create it in package $TMP.
+- The billing program calls the class for each plot. It passes the plot type, the
+  area of the plot in square metres, a flag that tells if the plot has a water
+  connection, and a flag that tells if the tenant is a member of the association.
+
+# 4. Contract
+- Create the class {{P}}GARDEN_RENT in package $TMP.
+- The class is public and final. It has a public constructor without parameters.
+- Do not add other public methods.
+- Define these public types:
+  - TY_PLOT_TYPE: type c, length 4.
+  - TY_REASON: type c, length 10.
+  - TY_AMOUNT: type p, length 8, 2 decimals.
+  - TY_RESULT: structure with the components REASON (type TY_REASON) and RENT
+    (type TY_AMOUNT).
+- Define the public constant structure C_REASON with the components OK, PLOT and
+  AREA. The values are 'OK', 'PLOT' and 'AREA'.
+- The class has the public method CALCULATE with these parameters:
+  - importing IV_PLOT_TYPE, type TY_PLOT_TYPE.
+  - importing IV_AREA, type i.
+  - importing IV_WATER, type abap_bool.
+  - importing IV_MEMBER, type abap_bool.
+  - returning RS_RESULT, type TY_RESULT.
+
+# 5. Business rules
+Apply the rules in this sequence. The first rule that fails decides the result.
+1. Convert the plot type to upper case.
+2. The plot type must be STD, PREM or BED. If not, return the reason PLOT and the
+   rent 0.00.
+3. The area must be between 10 and 500 square metres. Both limits are included.
+   If not, return the reason AREA and the rent 0.00.
+4. The rent per square metre depends on the plot type: STD = 0.35, PREM = 0.60,
+   BED = 0.90.
+5. The rent is the area multiplied by the rent per square metre.
+6. If the plot has a water connection, add 12.00.
+7. If the tenant is a member of the association, subtract 15 percent of that
+   amount.
+8. Round the rent to two decimals. Round half up: 22.695 becomes 22.70.
+9. The rent must be at least 10.00. If it is less, use 10.00.
+10. Return the reason OK and the rent.
+
+# 6. Constraints
+- Release target: 8.16.
+- Coding standards: Clean ABAP. Method length below 40 statements. No global
+  variables. No comment that restates the code.
+- Out of scope: do not create other objects and do not use a database table.
+
+# 7. Acceptance
+- The class is active and has no syntax error.
+- The hidden tests pass.
+- Write your own ABAP Unit tests for the class.