feat: 完善 Face 一级编辑与隔离计算

scripts/verify_edge_round_chamfer.py

@@ -250,6 +250,9 @@ def _run_existing_fillet_case(source_radius: float, target_radius: float, tolera
         plan = model.existing_fillet_resize_plan(face_id, target_radius)
         if plan["status"] == "blocked":
             raise SystemExit(f"existing fillet plan was blocked: {plan['message']}")
+        support_face_ids = tuple(plan.get("feature_existing_fillet_support_face_ids", ()))
+        if len(support_face_ids) < 2:
+            raise SystemExit(f"existing fillet should expose at least two support Faces, got {support_face_ids}")
         result = model.resize_existing_fillet(face_id, target_radius)
         after = model.stats()
         matches = _cylindrical_faces_near_radius(model, target_radius, tolerance)
@@ -265,6 +268,7 @@ def _run_existing_fillet_case(source_radius: float, target_radius: float, tolera
         print(f"strategy={plan.get('resize_strategy')}")
         print(f"before={before}")
         print(f"after={after}")
+        print(f"support_face_ids={support_face_ids}")
         print(f"source_radius={source_radius:.6f} target_radius={target_radius:.6f}")
         print(f"matched_faces={matches}")
         print(result.encode("ascii", "backslashreplace").decode("ascii"))