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/G1028/spec.md

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+# 1. Goal
+A company groups its departments in a hierarchy. Each department can have a
+parent department. A report and an OData service read the departments and also
+need the data of the parent department. The data must come from the database,
+from a CDS view entity. An ABAP SQL consumer reads the parent data with a path
+expression.
+
+# 2. Open questions
+None.
+
+# 3. Context
+- Table {{P}}DEPT (department), package $TMP. Key: DEPT_ID (CHAR 8).
+  Fields: DEPT_NAME (CHAR 30), PARENT_ID (CHAR 8), HEADCOUNT (INT4).
+- PARENT_ID holds the DEPT_ID of the parent department. The top department has
+  an empty PARENT_ID. A PARENT_ID can also point to a department that does not
+  exist.
+
+# 4. Contract
+- Create the CDS view entity {{P}}I_DEPT in package $TMP.
+- Elements, with these names: DEPT_ID (key), DEPT_NAME, PARENT_ID, HEADCOUNT.
+- The view has an association with the name _PARENT. The association points to
+  the department data. Through the association, a consumer can read the
+  DEPT_NAME and the other elements of the parent department.
+- No authorization check (#NOT_REQUIRED).
+
+# 5. Business rules
+1. The view shows one row for each department in {{P}}DEPT.
+2. DEPT_ID is the key element of the view.
+3. The association _PARENT matches the department whose DEPT_ID is the PARENT_ID
+   of the current department. A department has at most one parent department.
+4. A department with an empty PARENT_ID has no parent department. Reading the
+   parent's DEPT_NAME through the association gives an empty value.
+5. A department whose PARENT_ID does not match any department has no parent
+   department. Reading the parent's DEPT_NAME through the association gives an
+   empty value.
+6. DEPT_NAME, PARENT_ID and HEADCOUNT show the values of the department itself.
+
+# 6. Constraints
+- Release target: 8.16.
+- Coding standards: Clean ABAP.
+- Out of scope: do not change {{P}}DEPT and {{P}}SEED_DEPT.
+
+# 7. 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.