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/G1039/seed/if_tour_summary.intf.abap

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+INTERFACE {{p}}if_tour_summary PUBLIC.
+  TYPES ty_tour_type TYPE c LENGTH 1.
+  TYPES ty_status TYPE c LENGTH 1.
+
+  TYPES:
+    BEGIN OF ty_booking,
+      tour_type TYPE ty_tour_type,
+      adults    TYPE i,
+      children  TYPE i,
+    END OF ty_booking.
+
+  TYPES tt_booking TYPE STANDARD TABLE OF ty_booking WITH EMPTY KEY.
+
+  TYPES:
+    BEGIN OF ty_result,
+      status        TYPE ty_status,
+      total_fee     TYPE p LENGTH 8 DECIMALS 2,
+      booking_count TYPE i,
+      average_fee   TYPE p LENGTH 8 DECIMALS 2,
+    END OF ty_result.
+
+  CONSTANTS:
+    BEGIN OF c_status,
+      ok             TYPE ty_status VALUE 'O',
+      invalid_number TYPE ty_status VALUE 'N',
+      unknown_type   TYPE ty_status VALUE 'T',
+    END OF c_status.
+
+  METHODS summarize
+    IMPORTING it_bookings      TYPE tt_booking
+    RETURNING VALUE(rs_result) TYPE ty_result.
+ENDINTERFACE.