Fix coverage with several contract classes; table annotation and file path checks; clean task dir on write

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014aUaQeLnwbb1zTpN7kHeat

tasks_gen/eval/G0128/reference/cx_duty_too_long.clas.abap

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+CLASS {{p}}cx_duty_too_long DEFINITION
+  PUBLIC
+  INHERITING FROM cx_static_check
+  FINAL
+  CREATE PUBLIC.
+
+  PUBLIC SECTION.
+    TYPES ty_hours TYPE p LENGTH 4 DECIMALS 1.
+
+    DATA mv_duty_hours TYPE ty_hours READ-ONLY.
+
+    METHODS constructor
+      IMPORTING
+        iv_duty_hours TYPE ty_hours.
+ENDCLASS.
+
+
+CLASS {{p}}cx_duty_too_long IMPLEMENTATION.
+  METHOD constructor.
+    super->constructor( ).
+    mv_duty_hours = iv_duty_hours.
+  ENDMETHOD.
+ENDCLASS.