Release v1.0.90: document grid_help data-management contract

tests/test_docs_standards.py

@@ -348,6 +348,8 @@ class TestDocsStandards(unittest.TestCase):
             "文件 / 图片上传",
             "default_visible_columns_json",
             "默认展示列",
+            "grid_help",
+            "表格说明 `grid_help`",
         ):
             self.assertIn(marker, text, msg=f"SCHEMA.md missing {marker!r}")
 
@@ -365,6 +367,7 @@ class TestDocsStandards(unittest.TestCase):
             "SCHEMA.md",
             "字段条件显隐",
             "visibleWhen",
+            "grid_help",
         ):
             self.assertIn(marker, text, msg=f"ACTIONS.md missing {marker!r}")