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/G1004/seed/cx_balloon_flight.clas.abap

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+CLASS {{p}}cx_balloon_flight DEFINITION PUBLIC INHERITING FROM cx_static_check CREATE PUBLIC.
+  PUBLIC SECTION.
+    DATA mv_text TYPE string READ-ONLY.
+
+    METHODS constructor
+      IMPORTING iv_text TYPE string.
+
+  PRIVATE SECTION.
+    CONSTANTS c_dummy TYPE i VALUE 0.
+ENDCLASS.
+
+
+CLASS {{p}}cx_balloon_flight IMPLEMENTATION.
+  METHOD constructor.
+    super->constructor( ).
+    mv_text = iv_text.
+  ENDMETHOD.
+ENDCLASS.