test(unit): tighten repr assertions in test_repr_shows_counts

Replace bare "1" and "0" substring checks with "nodes=1" and "edges=0"
so the test catches incorrect counts like nodes=10 that would otherwise
satisfy the weaker assertions.

Author: polaz

tests/unit/test_schema_crud.py

@@ -184,5 +184,5 @@ def test_repr_shows_counts(self):
         nodes = [_FakeNode(1, [])]
         result = TraverseResult(_FakeTraverseResponse(nodes=nodes))
         r = repr(result)
-        assert "1" in r  # 1 node
-        assert "0" in r  # 0 edges
+        assert "nodes=1" in r
+        assert "edges=0" in r