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/external-link/index.js

@@ -0,0 +1,84 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = exports.ExternalLink = void 0;
+var _react = require("react");
+var _classnames = _interopRequireDefault(require("classnames"));
+var _i18n = require("@wordpress/i18n");
+var _element = require("@wordpress/element");
+var _icons = require("@wordpress/icons");
+var _visuallyHidden = require("../visually-hidden");
+var _externalLinkStyles = require("./styles/external-link-styles");
+/**
+ * External dependencies
+ */
+
+/**
+ * WordPress dependencies
+ */
+
+/**
+ * Internal dependencies
+ */
+
+function UnforwardedExternalLink(props, ref) {
+  const {
+    href,
+    children,
+    className,
+    rel = '',
+    ...additionalProps
+  } = props;
+  const optimizedRel = [...new Set([...rel.split(' '), 'external', 'noreferrer', 'noopener'].filter(Boolean))].join(' ');
+  const classes = (0, _classnames.default)('components-external-link', className);
+  /* Anchor links are perceived as external links.
+  This constant helps check for on page anchor links,
+  to prevent them from being opened in the editor. */
+  const isInternalAnchor = !!href?.startsWith('#');
+  const onClickHandler = event => {
+    if (isInternalAnchor) {
+      event.preventDefault();
+    }
+    if (props.onClick) {
+      props.onClick(event);
+    }
+  };
+  return (/* eslint-disable react/jsx-no-target-blank */
+    (0, _react.createElement)("a", {
+      ...additionalProps,
+      className: classes,
+      href: href,
+      onClick: onClickHandler,
+      target: "_blank",
+      rel: optimizedRel,
+      ref: ref
+    }, children, (0, _react.createElement)(_visuallyHidden.VisuallyHidden, {
+      as: "span"
+    }, /* translators: accessibility text */
+    (0, _i18n.__)('(opens in a new tab)')), (0, _react.createElement)(_externalLinkStyles.StyledIcon, {
+      icon: _icons.external,
+      className: "components-external-link__icon"
+    }))
+    /* eslint-enable react/jsx-no-target-blank */
+  );
+}
+
+/**
+ * Link to an external resource.
+ *
+ * ```jsx
+ * import { ExternalLink } from '@wordpress/components';
+ *
+ * const MyExternalLink = () => (
+ *   <ExternalLink href="https://wordpress.org">WordPress.org</ExternalLink>
+ * );
+ * ```
+ */
+const ExternalLink = (0, _element.forwardRef)(UnforwardedExternalLink);
+exports.ExternalLink = ExternalLink;
+var _default = ExternalLink;
+exports.default = _default;
+//# sourceMappingURL=index.js.map

node_modules/@wordpress/components/build/external-link/index.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["_classnames","_interopRequireDefault","require","_i18n","_element","_icons","_visuallyHidden","_externalLinkStyles","UnforwardedExternalLink","props","ref","href","children","className","rel","additionalProps","optimizedRel","Set","split","filter","Boolean","join","classes","classnames","isInternalAnchor","startsWith","onClickHandler","event","preventDefault","onClick","_react","createElement","target","VisuallyHidden","as","__","StyledIcon","icon","external","ExternalLink","forwardRef","exports","_default","default"],"sources":["@wordpress/components/src/external-link/index.tsx"],"sourcesContent":["/**\n * External dependencies\n */\nimport classnames from 'classnames';\nimport type { ForwardedRef } from 'react';\n\n/**\n * WordPress dependencies\n */\nimport { __ } from '@wordpress/i18n';\nimport { forwardRef } from '@wordpress/element';\nimport { external } from '@wordpress/icons';\n\n/**\n * Internal dependencies\n */\nimport { VisuallyHidden } from '../visually-hidden';\nimport { StyledIcon } from './styles/external-link-styles';\nimport type { ExternalLinkProps } from './types';\nimport type { WordPressComponentProps } from '../context';\n\nfunction UnforwardedExternalLink(\n\tprops: Omit<\n\t\tWordPressComponentProps< ExternalLinkProps, 'a', false >,\n\t\t'target'\n\t>,\n\tref: ForwardedRef< HTMLAnchorElement >\n) {\n\tconst { href, children, className, rel = '', ...additionalProps } = props;\n\tconst optimizedRel = [\n\t\t...new Set(\n\t\t\t[\n\t\t\t\t...rel.split( ' ' ),\n\t\t\t\t'external',\n\t\t\t\t'noreferrer',\n\t\t\t\t'noopener',\n\t\t\t].filter( Boolean )\n\t\t),\n\t].join( ' ' );\n\tconst classes = classnames( 'components-external-link', className );\n\t/* Anchor links are perceived as external links.\n\tThis constant helps check for on page anchor links,\n\tto prevent them from being opened in the editor. */\n\tconst isInternalAnchor = !! href?.startsWith( '#' );\n\n\tconst onClickHandler = (\n\t\tevent: React.MouseEvent< HTMLAnchorElement, MouseEvent >\n\t) => {\n\t\tif ( isInternalAnchor ) {\n\t\t\tevent.preventDefault();\n\t\t}\n\n\t\tif ( props.onClick ) {\n\t\t\tprops.onClick( event );\n\t\t}\n\t};\n\n\treturn (\n\t\t/* eslint-disable react/jsx-no-target-blank */\n\t\t<a\n\t\t\t{ ...additionalProps }\n\t\t\tclassName={ classes }\n\t\t\thref={ href }\n\t\t\tonClick={ onClickHandler }\n\t\t\ttarget=\"_blank\"\n\t\t\trel={ optimizedRel }\n\t\t\tref={ ref }\n\t\t>\n\t\t\t{ children }\n\t\t\t<VisuallyHidden as=\"span\">\n\t\t\t\t{\n\t\t\t\t\t/* translators: accessibility text */\n\t\t\t\t\t__( '(opens in a new tab)' )\n\t\t\t\t}\n\t\t\t</VisuallyHidden>\n\t\t\t<StyledIcon\n\t\t\t\ticon={ external }\n\t\t\t\tclassName=\"components-external-link__icon\"\n\t\t\t/>\n\t\t</a>\n\t\t/* eslint-enable react/jsx-no-target-blank */\n\t);\n}\n\n/**\n * Link to an external resource.\n *\n * ```jsx\n * import { ExternalLink } from '@wordpress/components';\n *\n * const MyExternalLink = () => (\n *   <ExternalLink href=\"https://wordpress.org\">WordPress.org</ExternalLink>\n * );\n * ```\n */\nexport const ExternalLink = forwardRef( UnforwardedExternalLink );\n\nexport default ExternalLink;\n"],"mappings":";;;;;;;;AAGA,IAAAA,WAAA,GAAAC,sBAAA,CAAAC,OAAA;AAMA,IAAAC,KAAA,GAAAD,OAAA;AACA,IAAAE,QAAA,GAAAF,OAAA;AACA,IAAAG,MAAA,GAAAH,OAAA;AAKA,IAAAI,eAAA,GAAAJ,OAAA;AACA,IAAAK,mBAAA,GAAAL,OAAA;AAjBA;AACA;AACA;;AAIA;AACA;AACA;;AAKA;AACA;AACA;;AAMA,SAASM,uBAAuBA,CAC/BC,KAGC,EACDC,GAAsC,EACrC;EACD,MAAM;IAAEC,IAAI;IAAEC,QAAQ;IAAEC,SAAS;IAAEC,GAAG,GAAG,EAAE;IAAE,GAAGC;EAAgB,CAAC,GAAGN,KAAK;EACzE,MAAMO,YAAY,GAAG,CACpB,GAAG,IAAIC,GAAG,CACT,CACC,GAAGH,GAAG,CAACI,KAAK,CAAE,GAAI,CAAC,EACnB,UAAU,EACV,YAAY,EACZ,UAAU,CACV,CAACC,MAAM,CAAEC,OAAQ,CACnB,CAAC,CACD,CAACC,IAAI,CAAE,GAAI,CAAC;EACb,MAAMC,OAAO,GAAG,IAAAC,mBAAU,EAAE,0BAA0B,EAAEV,SAAU,CAAC;EACnE;AACD;AACA;EACC,MAAMW,gBAAgB,GAAG,CAAC,CAAEb,IAAI,EAAEc,UAAU,CAAE,GAAI,CAAC;EAEnD,MAAMC,cAAc,GACnBC,KAAwD,IACpD;IACJ,IAAKH,gBAAgB,EAAG;MACvBG,KAAK,CAACC,cAAc,CAAC,CAAC;IACvB;IAEA,IAAKnB,KAAK,CAACoB,OAAO,EAAG;MACpBpB,KAAK,CAACoB,OAAO,CAAEF,KAAM,CAAC;IACvB;EACD,CAAC;EAED,OACC;IACA,IAAAG,MAAA,CAAAC,aAAA;MAAA,GACMhB,eAAe;MACpBF,SAAS,EAAGS,OAAS;MACrBX,IAAI,EAAGA,IAAM;MACbkB,OAAO,EAAGH,cAAgB;MAC1BM,MAAM,EAAC,QAAQ;MACflB,GAAG,EAAGE,YAAc;MACpBN,GAAG,EAAGA;IAAK,GAETE,QAAQ,EACV,IAAAkB,MAAA,CAAAC,aAAA,EAACzB,eAAA,CAAA2B,cAAc;MAACC,EAAE,EAAC;IAAM,GAEvB;IACA,IAAAC,QAAE,EAAE,sBAAuB,CAEb,CAAC,EACjB,IAAAL,MAAA,CAAAC,aAAA,EAACxB,mBAAA,CAAA6B,UAAU;MACVC,IAAI,EAAGC,eAAU;MACjBzB,SAAS,EAAC;IAAgC,CAC1C,CACC;IACH;EAAA;AAEF;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACO,MAAM0B,YAAY,GAAG,IAAAC,mBAAU,EAAEhC,uBAAwB,CAAC;AAACiC,OAAA,CAAAF,YAAA,GAAAA,YAAA;AAAA,IAAAG,QAAA,GAEnDH,YAAY;AAAAE,OAAA,CAAAE,OAAA,GAAAD,QAAA"}

node_modules/@wordpress/components/build/external-link/index.native.js

@@ -0,0 +1,33 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.ExternalLink = ExternalLink;
+exports.default = void 0;
+var _react = require("react");
+var _reactNative = require("react-native");
+var _i18n = require("@wordpress/i18n");
+var _icons = require("@wordpress/icons");
+/**
+ * External dependencies
+ */
+
+/**
+ * WordPress dependencies
+ */
+
+function ExternalLink({
+  href,
+  children
+}) {
+  return (0, _react.createElement)(_reactNative.TouchableOpacity, {
+    onPress: () => _reactNative.Linking.openURL(href),
+    accessibilityLabel: (0, _i18n.__)('Open link in a browser')
+  }, (0, _react.createElement)(_reactNative.Text, null, children), (0, _react.createElement)(_icons.Icon, {
+    icon: _icons.external
+  }));
+}
+var _default = ExternalLink;
+exports.default = _default;
+//# sourceMappingURL=index.native.js.map

node_modules/@wordpress/components/build/external-link/index.native.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["_reactNative","require","_i18n","_icons","ExternalLink","href","children","_react","createElement","TouchableOpacity","onPress","Linking","openURL","accessibilityLabel","__","Text","Icon","icon","external","_default","exports","default"],"sources":["@wordpress/components/src/external-link/index.native.js"],"sourcesContent":["/**\n * External dependencies\n */\n\nimport { TouchableOpacity, Text, Linking } from 'react-native';\n\n/**\n * WordPress dependencies\n */\nimport { __ } from '@wordpress/i18n';\nimport { external, Icon } from '@wordpress/icons';\n\nexport function ExternalLink( { href, children } ) {\n\treturn (\n\t\t<TouchableOpacity\n\t\t\tonPress={ () => Linking.openURL( href ) }\n\t\t\taccessibilityLabel={ __( 'Open link in a browser' ) }\n\t\t>\n\t\t\t<Text>{ children }</Text>\n\t\t\t<Icon icon={ external } />\n\t\t</TouchableOpacity>\n\t);\n}\n\nexport default ExternalLink;\n"],"mappings":";;;;;;;;AAIA,IAAAA,YAAA,GAAAC,OAAA;AAKA,IAAAC,KAAA,GAAAD,OAAA;AACA,IAAAE,MAAA,GAAAF,OAAA;AAVA;AACA;AACA;;AAIA;AACA;AACA;;AAIO,SAASG,YAAYA,CAAE;EAAEC,IAAI;EAAEC;AAAS,CAAC,EAAG;EAClD,OACC,IAAAC,MAAA,CAAAC,aAAA,EAACR,YAAA,CAAAS,gBAAgB;IAChBC,OAAO,EAAGA,CAAA,KAAMC,oBAAO,CAACC,OAAO,CAAEP,IAAK,CAAG;IACzCQ,kBAAkB,EAAG,IAAAC,QAAE,EAAE,wBAAyB;EAAG,GAErD,IAAAP,MAAA,CAAAC,aAAA,EAACR,YAAA,CAAAe,IAAI,QAAGT,QAAgB,CAAC,EACzB,IAAAC,MAAA,CAAAC,aAAA,EAACL,MAAA,CAAAa,IAAI;IAACC,IAAI,EAAGC;EAAU,CAAE,CACR,CAAC;AAErB;AAAC,IAAAC,QAAA,GAEcf,YAAY;AAAAgB,OAAA,CAAAC,OAAA,GAAAF,QAAA"}

node_modules/@wordpress/components/build/external-link/styles/external-link-styles.js

@@ -0,0 +1,26 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.StyledIcon = void 0;
+var _base = _interopRequireDefault(require("@emotion/styled/base"));
+var _icons = require("@wordpress/icons");
+function _EMOTION_STRINGIFIED_CSS_ERROR__() { return "You have tried to stringify object returned from `css` function. It isn't supposed to be used directly (e.g. as value of the `className` prop), but rather handed to emotion so it can handle it (e.g. as value of `css` prop)."; }
+const StyledIcon = ( /*#__PURE__*/0, _base.default)(_icons.Icon, process.env.NODE_ENV === "production" ? {
+  target: "esh4a730"
+} : {
+  target: "esh4a730",
+  label: "StyledIcon"
+})(process.env.NODE_ENV === "production" ? {
+  name: "rvs7bx",
+  styles: "width:1em;height:1em;margin:0;vertical-align:middle;fill:currentColor"
+} : {
+  name: "rvs7bx",
+  styles: "width:1em;height:1em;margin:0;vertical-align:middle;fill:currentColor",
+  map: "/*# sourceMappingURL=data:application/json;charset=utf-8;base64,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 */",
+  toString: _EMOTION_STRINGIFIED_CSS_ERROR__
+});
+exports.StyledIcon = StyledIcon;
+//# sourceMappingURL=external-link-styles.js.map

node_modules/@wordpress/components/build/external-link/styles/external-link-styles.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["_icons","require","_EMOTION_STRINGIFIED_CSS_ERROR__","StyledIcon","_base","default","Icon","process","env","NODE_ENV","target","label","name","styles","map","toString","exports"],"sources":["@wordpress/components/src/external-link/styles/external-link-styles.ts"],"sourcesContent":["/**\n * External dependencies\n */\nimport styled from '@emotion/styled';\n\n/**\n * WordPress dependencies\n */\nimport { Icon } from '@wordpress/icons';\n\nexport const StyledIcon = styled( Icon )`\n\twidth: 1em;\n\theight: 1em;\n\tmargin: 0;\n\tvertical-align: middle;\n\tfill: currentColor;\n`;\n"],"mappings":";;;;;;;;AAQA,IAAAA,MAAA,GAAAC,OAAA;AAAwC,SAAAC,iCAAA;AAEjC,MAAMC,UAAU,GAAG,kBAAAC,KAAA,CAAAC,OAAA,EAAQC,WAAI,EAAAC,OAAA,CAAAC,GAAA,CAAAC,QAAA;EAAAC,MAAA;AAAA;EAAAA,MAAA;EAAAC,KAAA;AAAA,CAAC,CAAC,CAAAJ,OAAA,CAAAC,GAAA,CAAAC,QAAA;EAAAG,IAAA;EAAAC,MAAA;AAAA;EAAAD,IAAA;EAAAC,MAAA;EAAAC,GAAA;EAAAC,QAAA,EAAAb;AAAA,EAMvC;AAACc,OAAA,CAAAb,UAAA,GAAAA,UAAA"}

node_modules/@wordpress/components/build/external-link/types.js

@@ -0,0 +1,6 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+//# sourceMappingURL=types.js.map

node_modules/@wordpress/components/build/external-link/types.js.map

@@ -0,0 +1 @@
+{"version":3,"names":[],"sources":["@wordpress/components/src/external-link/types.ts"],"sourcesContent":["/**\n * External dependencies\n */\nimport type { ReactNode } from 'react';\n\nexport type ExternalLinkProps = {\n\t/**\n\t * The content to be displayed within the link.\n\t */\n\tchildren: ReactNode;\n\t/**\n\t * The URL of the external resource.\n\t */\n\thref: string;\n};\n"],"mappings":""}