GridCommands: implement column and summary commands (#33520)

Author: anna-shakhova

packages/devextreme/eslint.config.mjs

@@ -403,19 +403,6 @@ export default [
             'spellcheck/spell-checker': 'off',
         },
     },
-    // Spellcheck overrides for ai_assistant (Zod dependency)
-    {
-        files: ['js/__internal/grids/grid_core/ai_assistant/**/*'],
-        rules: {
-            'spellcheck/spell-checker': ['error', {
-                ...spellCheckConfig[0].rules['spellcheck/spell-checker'][1],
-                skipWords: [
-                    ...spellCheckConfig[0].rules['spellcheck/spell-checker'][1].skipWords,
-                    'Zod',
-                ],
-            }],
-        },
-    },
     // Rules for js/__internal folder
     {
         files: ['js/__internal/**/*'],