Fix importer: always create new sketch + generate sandbox 2 rib profile (11 pockets)

tools/adaptive-isogrid/src/nx/import_profile.py

@@ -82,44 +82,14 @@ def _find_or_create_sketch(
     lister: Any,
 ) -> Any:
     """
-    Find existing sketch by name, or create a new one on the sandbox plane.
-    If found, delete all existing geometry in it (for update).
+    Always create a new sketch on the sandbox plane and name it.
+    NX will auto-number internally (e.g. SKETCH_008).
+    The sketch Name attribute is set to sketch_name for identification.
     Returns the Sketch object.
     """
     import NXOpen
 
-    # Try to find existing sketch by name
-    existing_sketch = None
-    try:
-        for feat in part.Features:
-            fname = ""
-            try:
-                fname = feat.Name
-            except Exception:
-                continue
-            if fname == sketch_name:
-                try:
-                    existing_sketch = feat.GetEntities()[0]
-                    lister.WriteLine(f"[import] Found existing sketch: {sketch_name}")
-                except Exception:
-                    pass
-                break
-    except Exception:
-        pass
-
-    if existing_sketch is not None:
-        try:
-            existing_sketch.Activate(False)
-            all_geom = existing_sketch.GetAllGeometry()
-            if all_geom:
-                existing_sketch.DeleteObjects(list(all_geom))
-                lister.WriteLine(f"[import] Cleared {len(all_geom)} objects from existing sketch")
-            existing_sketch.Deactivate(False, False)
-        except Exception as exc:
-            lister.WriteLine(f"[import] Warning clearing sketch: {exc}")
-        return existing_sketch
-
-    # Create new sketch on the sandbox plane
+    # Always create new sketch — NX handles duplicate names fine
     lister.WriteLine(f"[import] Creating new sketch: {sketch_name}")
 
     origin = transform["origin"]