Hard batch G0022-G0026: 5/5 accepted; budget floor, CDS checks, mutation check

- generator: budget floor (2x oracle activations, 3x calls), static checks for CDS
  $parameters and UNION annotation
- harness/mutation.py: deterministic mutants of the reference; hidden tests must fail
- G0022 revalidated with harness fixes: oracle 100, null 0
- results in docs/faz1-tasarim.md 11f

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tasks_gen/eval/G0022/reference/cx_claim_date.clas.abap

@@ -0,0 +1,20 @@
+CLASS {{p}}cx_claim_date DEFINITION
+  PUBLIC
+  INHERITING FROM {{p}}cx_claim_error
+  FINAL
+  CREATE PUBLIC.
+
+  PUBLIC SECTION.
+    DATA mv_claim_date TYPE d READ-ONLY.
+
+    METHODS constructor
+      IMPORTING iv_claim_date TYPE d.
+ENDCLASS.
+
+
+CLASS {{p}}cx_claim_date IMPLEMENTATION.
+  METHOD constructor.
+    super->constructor( iv_message = 'Claim date is in the future' ).
+    mv_claim_date = iv_claim_date.
+  ENDMETHOD.
+ENDCLASS.