feat: 完善参数化关系式与SCDM模型修改验证

step_editor/model.py

@@ -4808,6 +4808,24 @@ class StepModel(FeatureMixin, ExportMixin, TransformMixin, OperationMixin, Polyd
         self._editable_feature_candidates_cache.clear()
         self._cylindrical_feature_candidates_cache.clear()
 
+    def mark_external_recognition_stale(self, reason: str = "modified-topology") -> None:
+        self._topology_refresh_generation = max(int(getattr(self, "_topology_refresh_generation", 0) or 0), 2)
+        self._asitus_hole_regions_attempted = False
+        self._asitus_hole_regions_loading = False
+        self._asitus_hole_region_cache.clear()
+        self._asitus_face_relation_cache.clear()
+        self._asitus_adjacency_relation_cache.clear()
+        self._asitus_geometric_relation_cache.clear()
+        self._asitus_hole_recognition_info.clear()
+        self._asitus_hole_recognition_info.update(
+            {
+                "ok": False,
+                "reason": str(reason or "modified-topology"),
+                "message": "Analysis Situs result ignored because the model topology has changed.",
+            }
+        )
+        self._clear_same_domain_dependent_caches()
+
     def _install_asitus_relation_summary(self, result: dict[str, object]) -> None:
         faces = result.get("faces", ())
         if isinstance(faces, (tuple, list)):