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/components/build-module/view/component.js

@@ -0,0 +1,31 @@
+import _styled from "@emotion/styled/base";
+/**
+ * External dependencies
+ */
+
+/**
+ * `View` is a core component that renders everything in the library.
+ * It is the principle component in the entire library.
+ *
+ * ```jsx
+ * import { View } from `@wordpress/components`;
+ *
+ * function Example() {
+ * 	return (
+ * 		<View>
+ * 			 Code is Poetry
+ * 		</View>
+ * 	);
+ * }
+ * ```
+ */
+export const View = _styled("div", process.env.NODE_ENV === "production" ? {
+  target: "e19lxcc00"
+} : {
+  target: "e19lxcc00",
+  label: "View"
+})(process.env.NODE_ENV === "production" ? "" : "/*# sourceMappingURL=data:application/json;charset=utf-8;base64,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 */");
+View.selector = '.components-view';
+View.displayName = 'View';
+export default View;
+//# sourceMappingURL=component.js.map

node_modules/@wordpress/components/build-module/view/component.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["View","_styled","process","env","NODE_ENV","target","label","selector","displayName"],"sources":["@wordpress/components/src/view/component.tsx"],"sourcesContent":["/**\n * External dependencies\n */\nimport styled from '@emotion/styled';\nimport type { RefAttributes } from 'react';\n\n/**\n * Internal dependencies\n */\nimport type { WordPressComponent } from '../context/wordpress-component';\nimport type { ViewProps } from './types';\n\n/**\n * `View` is a core component that renders everything in the library.\n * It is the principle component in the entire library.\n *\n * ```jsx\n * import { View } from `@wordpress/components`;\n *\n * function Example() {\n * \treturn (\n * \t\t<View>\n * \t\t\t Code is Poetry\n * \t\t</View>\n * \t);\n * }\n * ```\n */\nexport const View: WordPressComponent<\n\t'div',\n\tViewProps & RefAttributes< any >,\n\ttrue\n> = styled.div``;\n\nView.selector = '.components-view';\nView.displayName = 'View';\n\nexport default View;\n"],"mappings":";AAAA;AACA;AACA;;AAUA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,OAAO,MAAMA,IAIZ,GAAAC,OAAA,QAAAC,OAAA,CAAAC,GAAA,CAAAC,QAAA;EAAAC,MAAA;AAAA;EAAAA,MAAA;EAAAC,KAAA;AAAA,GAAAJ,OAAA,CAAAC,GAAA,CAAAC,QAAA,u4CAAe;AAEhBJ,IAAI,CAACO,QAAQ,GAAG,kBAAkB;AAClCP,IAAI,CAACQ,WAAW,GAAG,MAAM;AAEzB,eAAeR,IAAI"}

node_modules/@wordpress/components/build-module/view/index.js

@@ -0,0 +1,2 @@
+export { default as View } from './component';
+//# sourceMappingURL=index.js.map

node_modules/@wordpress/components/build-module/view/index.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["default","View"],"sources":["@wordpress/components/src/view/index.ts"],"sourcesContent":["export { default as View } from './component';\n"],"mappings":"AAAA,SAASA,OAAO,IAAIC,IAAI,QAAQ,aAAa"}

node_modules/@wordpress/components/build-module/view/types.js

@@ -0,0 +1,2 @@
+export {};
+//# sourceMappingURL=types.js.map

node_modules/@wordpress/components/build-module/view/types.js.map

@@ -0,0 +1 @@
+{"version":3,"names":[],"sources":["@wordpress/components/src/view/types.ts"],"sourcesContent":["/**\n * External dependencies\n */\nimport type { ReactNode } from 'react';\n\nexport type ViewProps = { children?: ReactNode };\n"],"mappings":""}