Step F first pass: 81/92 accepted; budget floor 60 calls; rejected slots moved for regeneration

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

tasks_gen/eval/G0148/seed/if_trade_in.intf.abap

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+INTERFACE {{p}}if_trade_in PUBLIC.
+  TYPES ty_value TYPE i.
+  TYPES ty_brand TYPE c LENGTH 8.
+  TYPES ty_grade TYPE c LENGTH 1.
+  TYPES ty_reason TYPE c LENGTH 10.
+  TYPES:
+    BEGIN OF ty_result,
+      amount TYPE ty_value,
+      reason TYPE ty_reason,
+    END OF ty_result.
+  CONSTANTS:
+    BEGIN OF c_brand,
+      premium TYPE ty_brand VALUE 'PREMIUM',
+      volume  TYPE ty_brand VALUE 'VOLUME',
+      budget  TYPE ty_brand VALUE 'BUDGET',
+    END OF c_brand,
+    BEGIN OF c_grade,
+      a TYPE ty_grade VALUE 'A',
+      b TYPE ty_grade VALUE 'B',
+      c TYPE ty_grade VALUE 'C',
+      d TYPE ty_grade VALUE 'D',
+    END OF c_grade,
+    BEGIN OF c_reason,
+      ok      TYPE ty_reason VALUE 'OK',
+      brand   TYPE ty_reason VALUE 'BRAND',
+      grade   TYPE ty_reason VALUE 'GRADE',
+      age     TYPE ty_reason VALUE 'AGE',
+      mileage TYPE ty_reason VALUE 'MILEAGE',
+    END OF c_reason.
+  METHODS assess
+    IMPORTING iv_brand      TYPE ty_brand
+              iv_grade      TYPE ty_grade
+              iv_age_months TYPE i
+              iv_mileage    TYPE i
+    RETURNING VALUE(rs_result) TYPE ty_result.
+ENDINTERFACE.