AI Column: Fix default value for the allowHiding option

Author: Alyar

e2e/testcafe-devextreme/tests/dataGrid/common/aiColumn/columnChooser.functional.ts

@@ -66,7 +66,6 @@ test('The AI column can be hidden when columnChooser.mode is "dragAndDrop"', asy
       type: 'ai',
       caption: 'AI Column',
       name: 'myAiColumn',
-      allowHiding: true, // TODO: Remove after merging https://github.com/DevExpress/DevExtreme/pull/31104 and enabling this option by default.
     },
     { dataField: 'id', caption: 'ID' },
     { dataField: 'name', caption: 'Name' },
@@ -266,7 +265,6 @@ test('The AI column can be shown when columnChooser.mode is "dragAndDrop"', asyn
       caption: 'AI Column',
       name: 'myAiColumn',
       visible: false,
-      allowHiding: true, // TODO: Remove after merging https://github.com/DevExpress/DevExtreme/pull/31104 and enabling this option by default.
     },
     { dataField: 'id', caption: 'ID' },
     { dataField: 'name', caption: 'Name' },

packages/devextreme/js/__internal/grids/grid_core/columns_controller/m_columns_controller.ts

@@ -25,6 +25,7 @@ import type { DataController } from '@ts/grids/grid_core/data_controller/m_data_
 import type { FocusController } from '@ts/grids/grid_core/focus/m_focus';
 import type { StateStoringController } from '@ts/grids/grid_core/state_storing/m_state_storing_core';
 
+import { AI_COLUMN_NAME } from '../ai_column/const';
 import modules from '../m_modules';
 import type { Module } from '../m_types';
 import gridCoreUtils from '../m_utils';
@@ -141,6 +142,14 @@ export class ColumnsController extends modules.Controller {
 
   public _isWarnedAboutUnsupportedProperties?: boolean;
 
+  private getCommonColumnSettings(column): Partial<Column> {
+    if (!column?.type) {
+      return this.option('commonColumnSettings');
+    }
+
+    return column.type === AI_COLUMN_NAME ? { allowHiding: true } : {};
+  }
+
   public init(isApplyingUserState?): void {
     this._dataController = this.getController('data');
     this._focusController = this.getController('focus');
@@ -391,7 +400,7 @@ export class ColumnsController extends modules.Controller {
   }
 
   public getCommonSettings(column?) {
-    const commonColumnSettings = (!column || !column.type) && this.option('commonColumnSettings') || {};
+    const commonColumnSettings = this.getCommonColumnSettings(column);
     const groupingOptions: any = this.option('grouping') ?? {};
     const groupPanelOptions: any = this.option('groupPanel') ?? {};