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/G1027/reference/scaffold_fee.clas.abap

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+CLASS {{p}}scaffold_fee DEFINITION PUBLIC FINAL CREATE PUBLIC.
+  PUBLIC SECTION.
+    INTERFACES {{p}}if_hire_fee.
+
+  PRIVATE SECTION.
+    TYPES ty_exact TYPE p LENGTH 15 DECIMALS 5.
+
+    CONSTANTS:
+      c_daily_rate       TYPE {{p}}if_hire_fee=>ty_amount VALUE '4.20',
+      c_express_percent  TYPE i VALUE 12,
+      c_discount_percent TYPE i VALUE 6,
+      c_long_hire_days   TYPE i VALUE 30.
+
+    METHODS base_fee
+      IMPORTING iv_days       TYPE i
+                iv_parts      TYPE i
+      RETURNING VALUE(rv_fee) TYPE {{p}}if_hire_fee=>ty_amount.
+    METHODS express_surcharge
+      IMPORTING iv_base             TYPE {{p}}if_hire_fee=>ty_amount
+      RETURNING VALUE(rv_surcharge) TYPE {{p}}if_hire_fee=>ty_amount.
+    METHODS long_hire_discount
+      IMPORTING iv_base            TYPE {{p}}if_hire_fee=>ty_amount
+      RETURNING VALUE(rv_discount) TYPE {{p}}if_hire_fee=>ty_amount.
+ENDCLASS.
+
+
+CLASS {{p}}scaffold_fee IMPLEMENTATION.
+  METHOD {{p}}if_hire_fee~calculate_fee.
+    DATA(lv_base) = base_fee( iv_days = iv_days iv_parts = iv_parts ).
+    DATA(lv_fee) = lv_base.
+    IF iv_express = abap_true.
+      lv_fee = lv_fee + express_surcharge( lv_base ).
+    ENDIF.
+    IF iv_days > c_long_hire_days.
+      rs_result-discount = long_hire_discount( lv_base ).
+      lv_fee = lv_fee - rs_result-discount.
+    ENDIF.
+    rs_result-fee = lv_fee.
+  ENDMETHOD.
+
+  METHOD base_fee.
+    rv_fee = iv_days * iv_parts * c_daily_rate.
+  ENDMETHOD.
+
+  METHOD express_surcharge.
+    DATA(lv_amount) = CONV ty_exact( iv_base ) * c_express_percent / 100.
+    rv_surcharge = round( val = lv_amount dec = 2 mode = 'CEILING' ).
+  ENDMETHOD.
+
+  METHOD long_hire_discount.
+    DATA(lv_amount) = CONV ty_exact( iv_base ) * c_discount_percent / 100.
+    rv_discount = round( val = lv_amount dec = 2 mode = 'HALF_UP' ).
+  ENDMETHOD.
+ENDCLASS.