fix: prevent asset conflicts between React and Grid.js versions

Add coexistence checks to all enqueue methods to prevent loading
both React and Grid.js assets simultaneously.

Changes:
- ReactAdmin.php: Only enqueue React assets when ?react=1
- Init.php: Skip Grid.js when React active on admin pages
- Form.php, Coupon.php, Access.php: Restore classic assets when ?react=0
- Customer.php, Product.php, License.php: Add coexistence checks

Now the toggle between Classic and React versions works correctly.

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

node_modules/@wordpress/data/build-module/components/with-select/index.js

@@ -0,0 +1,63 @@
+import { createElement } from "react";
+/**
+ * WordPress dependencies
+ */
+import { createHigherOrderComponent, pure } from '@wordpress/compose';
+
+/**
+ * Internal dependencies
+ */
+import useSelect from '../use-select';
+
+/** @typedef {import('react').ComponentType} ComponentType */
+
+/**
+ * Higher-order component used to inject state-derived props using registered
+ * selectors.
+ *
+ * @param {Function} mapSelectToProps Function called on every state change,
+ *                                    expected to return object of props to
+ *                                    merge with the component's own props.
+ *
+ * @example
+ * ```js
+ * import { withSelect } from '@wordpress/data';
+ * import { store as myCustomStore } from 'my-custom-store';
+ *
+ * function PriceDisplay( { price, currency } ) {
+ * 	return new Intl.NumberFormat( 'en-US', {
+ * 		style: 'currency',
+ * 		currency,
+ * 	} ).format( price );
+ * }
+ *
+ * const HammerPriceDisplay = withSelect( ( select, ownProps ) => {
+ * 	const { getPrice } = select( myCustomStore );
+ * 	const { currency } = ownProps;
+ *
+ * 	return {
+ * 		price: getPrice( 'hammer', currency ),
+ * 	};
+ * } )( PriceDisplay );
+ *
+ * // Rendered in the application:
+ * //
+ * //  <HammerPriceDisplay currency="USD" />
+ * ```
+ * In the above example, when `HammerPriceDisplay` is rendered into an
+ * application, it will pass the price into the underlying `PriceDisplay`
+ * component and update automatically if the price of a hammer ever changes in
+ * the store.
+ *
+ * @return {ComponentType} Enhanced component with merged state data props.
+ */
+const withSelect = mapSelectToProps => createHigherOrderComponent(WrappedComponent => pure(ownProps => {
+  const mapSelect = (select, registry) => mapSelectToProps(select, ownProps, registry);
+  const mergeProps = useSelect(mapSelect);
+  return createElement(WrappedComponent, {
+    ...ownProps,
+    ...mergeProps
+  });
+}), 'withSelect');
+export default withSelect;
+//# sourceMappingURL=index.js.map

node_modules/@wordpress/data/build-module/components/with-select/index.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["createHigherOrderComponent","pure","useSelect","withSelect","mapSelectToProps","WrappedComponent","ownProps","mapSelect","select","registry","mergeProps","createElement"],"sources":["@wordpress/data/src/components/with-select/index.js"],"sourcesContent":["/**\n * WordPress dependencies\n */\nimport { createHigherOrderComponent, pure } from '@wordpress/compose';\n\n/**\n * Internal dependencies\n */\nimport useSelect from '../use-select';\n\n/** @typedef {import('react').ComponentType} ComponentType */\n\n/**\n * Higher-order component used to inject state-derived props using registered\n * selectors.\n *\n * @param {Function} mapSelectToProps Function called on every state change,\n *                                    expected to return object of props to\n *                                    merge with the component's own props.\n *\n * @example\n * ```js\n * import { withSelect } from '@wordpress/data';\n * import { store as myCustomStore } from 'my-custom-store';\n *\n * function PriceDisplay( { price, currency } ) {\n * \treturn new Intl.NumberFormat( 'en-US', {\n * \t\tstyle: 'currency',\n * \t\tcurrency,\n * \t} ).format( price );\n * }\n *\n * const HammerPriceDisplay = withSelect( ( select, ownProps ) => {\n * \tconst { getPrice } = select( myCustomStore );\n * \tconst { currency } = ownProps;\n *\n * \treturn {\n * \t\tprice: getPrice( 'hammer', currency ),\n * \t};\n * } )( PriceDisplay );\n *\n * // Rendered in the application:\n * //\n * //  <HammerPriceDisplay currency=\"USD\" />\n * ```\n * In the above example, when `HammerPriceDisplay` is rendered into an\n * application, it will pass the price into the underlying `PriceDisplay`\n * component and update automatically if the price of a hammer ever changes in\n * the store.\n *\n * @return {ComponentType} Enhanced component with merged state data props.\n */\nconst withSelect = ( mapSelectToProps ) =>\n\tcreateHigherOrderComponent(\n\t\t( WrappedComponent ) =>\n\t\t\tpure( ( ownProps ) => {\n\t\t\t\tconst mapSelect = ( select, registry ) =>\n\t\t\t\t\tmapSelectToProps( select, ownProps, registry );\n\t\t\t\tconst mergeProps = useSelect( mapSelect );\n\t\t\t\treturn <WrappedComponent { ...ownProps } { ...mergeProps } />;\n\t\t\t} ),\n\t\t'withSelect'\n\t);\n\nexport default withSelect;\n"],"mappings":";AAAA;AACA;AACA;AACA,SAASA,0BAA0B,EAAEC,IAAI,QAAQ,oBAAoB;;AAErE;AACA;AACA;AACA,OAAOC,SAAS,MAAM,eAAe;;AAErC;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,MAAMC,UAAU,GAAKC,gBAAgB,IACpCJ,0BAA0B,CACvBK,gBAAgB,IACjBJ,IAAI,CAAIK,QAAQ,IAAM;EACrB,MAAMC,SAAS,GAAGA,CAAEC,MAAM,EAAEC,QAAQ,KACnCL,gBAAgB,CAAEI,MAAM,EAAEF,QAAQ,EAAEG,QAAS,CAAC;EAC/C,MAAMC,UAAU,GAAGR,SAAS,CAAEK,SAAU,CAAC;EACzC,OAAOI,aAAA,CAACN,gBAAgB;IAAA,GAAMC,QAAQ;IAAA,GAAQI;EAAU,CAAI,CAAC;AAC9D,CAAE,CAAC,EACJ,YACD,CAAC;AAEF,eAAeP,UAAU","ignoreList":[]}