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/reference/i_dept.ddls.asddls

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+@AccessControl.authorizationCheck: #NOT_REQUIRED
+@EndUserText.label: 'Departments'
+define view entity {{P}}I_DEPT
+  as select from {{p}}dept
+  association [0..1] to {{p}}dept as _parent on $projection.parent_id = _parent.dept_id
+{
+  key dept_id,
+      dept_name,
+      parent_id,
+      headcount,
+      _parent
+}

tasks_gen/train/G1028/reference/t20_test.clas.abap

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+CLASS {{p}}t20_test DEFINITION PUBLIC FINAL CREATE PUBLIC
+  FOR TESTING DURATION SHORT RISK LEVEL HARMLESS.
+  PRIVATE SECTION.
+    CLASS-DATA go_env TYPE REF TO if_cds_test_environment.
+    CLASS-METHODS class_setup.
+    CLASS-METHODS class_teardown.
+    METHODS setup.
+    METHODS parent_name_via_assoc FOR TESTING.
+ENDCLASS.
+
+
+CLASS {{p}}t20_test IMPLEMENTATION.
+  METHOD class_setup.
+    go_env = cl_cds_test_environment=>create( i_for_entity = '{{P}}I_DEPT' ).
+  ENDMETHOD.
+
+  METHOD class_teardown.
+    go_env->destroy( ).
+  ENDMETHOD.
+
+  METHOD setup.
+    DATA lt_dept TYPE STANDARD TABLE OF {{p}}dept WITH EMPTY KEY.
+    go_env->clear_doubles( ).
+    lt_dept = VALUE #(
+      ( dept_id = 'D100' dept_name = 'HEAD OFFICE' parent_id = ''     headcount = 10 )
+      ( dept_id = 'D200' dept_name = 'SALES'       parent_id = 'D100' headcount = 25 ) ).
+    go_env->insert_test_data( lt_dept ).
+  ENDMETHOD.
+
+  METHOD parent_name_via_assoc.
+    SELECT SINGLE _parent~dept_name FROM {{p}}i_dept
+      WHERE dept_id = 'D200' INTO @DATA(lv_name).
+    cl_abap_unit_assert=>assert_equals( exp = 'HEAD OFFICE' act = lv_name ).
+  ENDMETHOD.
+ENDCLASS.