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/compose/build/hooks/use-media-query/index.js

@@ -0,0 +1,66 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = useMediaQuery;
+var _element = require("@wordpress/element");
+/**
+ * WordPress dependencies
+ */
+
+const matchMediaCache = new Map();
+
+/**
+ * A new MediaQueryList object for the media query
+ *
+ * @param {string} [query] Media Query.
+ * @return {MediaQueryList|null} A new object for the media query
+ */
+function getMediaQueryList(query) {
+  if (!query) {
+    return null;
+  }
+  let match = matchMediaCache.get(query);
+  if (match) {
+    return match;
+  }
+  if (typeof window !== 'undefined' && typeof window.matchMedia === 'function') {
+    match = window.matchMedia(query);
+    matchMediaCache.set(query, match);
+    return match;
+  }
+  return null;
+}
+
+/**
+ * Runs a media query and returns its value when it changes.
+ *
+ * @param {string} [query] Media Query.
+ * @return {boolean} return value of the media query.
+ */
+function useMediaQuery(query) {
+  const source = (0, _element.useMemo)(() => {
+    const mediaQueryList = getMediaQueryList(query);
+    return {
+      /** @type {(onStoreChange: () => void) => () => void} */
+      subscribe(onStoreChange) {
+        if (!mediaQueryList) {
+          return () => {};
+        }
+
+        // Avoid a fatal error when browsers don't support `addEventListener` on MediaQueryList.
+        mediaQueryList.addEventListener?.('change', onStoreChange);
+        return () => {
+          mediaQueryList.removeEventListener?.('change', onStoreChange);
+        };
+      },
+      getValue() {
+        var _mediaQueryList$match;
+        return (_mediaQueryList$match = mediaQueryList?.matches) !== null && _mediaQueryList$match !== void 0 ? _mediaQueryList$match : false;
+      }
+    };
+  }, [query]);
+  return (0, _element.useSyncExternalStore)(source.subscribe, source.getValue, () => false);
+}
+//# sourceMappingURL=index.js.map

node_modules/@wordpress/compose/build/hooks/use-media-query/index.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["_element","require","matchMediaCache","Map","getMediaQueryList","query","match","get","window","matchMedia","set","useMediaQuery","source","useMemo","mediaQueryList","subscribe","onStoreChange","addEventListener","removeEventListener","getValue","_mediaQueryList$match","matches","useSyncExternalStore"],"sources":["@wordpress/compose/src/hooks/use-media-query/index.js"],"sourcesContent":["/**\n * WordPress dependencies\n */\nimport { useMemo, useSyncExternalStore } from '@wordpress/element';\n\nconst matchMediaCache = new Map();\n\n/**\n * A new MediaQueryList object for the media query\n *\n * @param {string} [query] Media Query.\n * @return {MediaQueryList|null} A new object for the media query\n */\nfunction getMediaQueryList( query ) {\n\tif ( ! query ) {\n\t\treturn null;\n\t}\n\n\tlet match = matchMediaCache.get( query );\n\n\tif ( match ) {\n\t\treturn match;\n\t}\n\n\tif (\n\t\ttypeof window !== 'undefined' &&\n\t\ttypeof window.matchMedia === 'function'\n\t) {\n\t\tmatch = window.matchMedia( query );\n\t\tmatchMediaCache.set( query, match );\n\t\treturn match;\n\t}\n\n\treturn null;\n}\n\n/**\n * Runs a media query and returns its value when it changes.\n *\n * @param {string} [query] Media Query.\n * @return {boolean} return value of the media query.\n */\nexport default function useMediaQuery( query ) {\n\tconst source = useMemo( () => {\n\t\tconst mediaQueryList = getMediaQueryList( query );\n\n\t\treturn {\n\t\t\t/** @type {(onStoreChange: () => void) => () => void} */\n\t\t\tsubscribe( onStoreChange ) {\n\t\t\t\tif ( ! mediaQueryList ) {\n\t\t\t\t\treturn () => {};\n\t\t\t\t}\n\n\t\t\t\t// Avoid a fatal error when browsers don't support `addEventListener` on MediaQueryList.\n\t\t\t\tmediaQueryList.addEventListener?.( 'change', onStoreChange );\n\t\t\t\treturn () => {\n\t\t\t\t\tmediaQueryList.removeEventListener?.(\n\t\t\t\t\t\t'change',\n\t\t\t\t\t\tonStoreChange\n\t\t\t\t\t);\n\t\t\t\t};\n\t\t\t},\n\t\t\tgetValue() {\n\t\t\t\treturn mediaQueryList?.matches ?? false;\n\t\t\t},\n\t\t};\n\t}, [ query ] );\n\n\treturn useSyncExternalStore(\n\t\tsource.subscribe,\n\t\tsource.getValue,\n\t\t() => false\n\t);\n}\n"],"mappings":";;;;;;AAGA,IAAAA,QAAA,GAAAC,OAAA;AAHA;AACA;AACA;;AAGA,MAAMC,eAAe,GAAG,IAAIC,GAAG,CAAC,CAAC;;AAEjC;AACA;AACA;AACA;AACA;AACA;AACA,SAASC,iBAAiBA,CAAEC,KAAK,EAAG;EACnC,IAAK,CAAEA,KAAK,EAAG;IACd,OAAO,IAAI;EACZ;EAEA,IAAIC,KAAK,GAAGJ,eAAe,CAACK,GAAG,CAAEF,KAAM,CAAC;EAExC,IAAKC,KAAK,EAAG;IACZ,OAAOA,KAAK;EACb;EAEA,IACC,OAAOE,MAAM,KAAK,WAAW,IAC7B,OAAOA,MAAM,CAACC,UAAU,KAAK,UAAU,EACtC;IACDH,KAAK,GAAGE,MAAM,CAACC,UAAU,CAAEJ,KAAM,CAAC;IAClCH,eAAe,CAACQ,GAAG,CAAEL,KAAK,EAAEC,KAAM,CAAC;IACnC,OAAOA,KAAK;EACb;EAEA,OAAO,IAAI;AACZ;;AAEA;AACA;AACA;AACA;AACA;AACA;AACe,SAASK,aAAaA,CAAEN,KAAK,EAAG;EAC9C,MAAMO,MAAM,GAAG,IAAAC,gBAAO,EAAE,MAAM;IAC7B,MAAMC,cAAc,GAAGV,iBAAiB,CAAEC,KAAM,CAAC;IAEjD,OAAO;MACN;MACAU,SAASA,CAAEC,aAAa,EAAG;QAC1B,IAAK,CAAEF,cAAc,EAAG;UACvB,OAAO,MAAM,CAAC,CAAC;QAChB;;QAEA;QACAA,cAAc,CAACG,gBAAgB,GAAI,QAAQ,EAAED,aAAc,CAAC;QAC5D,OAAO,MAAM;UACZF,cAAc,CAACI,mBAAmB,GACjC,QAAQ,EACRF,aACD,CAAC;QACF,CAAC;MACF,CAAC;MACDG,QAAQA,CAAA,EAAG;QAAA,IAAAC,qBAAA;QACV,QAAAA,qBAAA,GAAON,cAAc,EAAEO,OAAO,cAAAD,qBAAA,cAAAA,qBAAA,GAAI,KAAK;MACxC;IACD,CAAC;EACF,CAAC,EAAE,CAAEf,KAAK,CAAG,CAAC;EAEd,OAAO,IAAAiB,6BAAoB,EAC1BV,MAAM,CAACG,SAAS,EAChBH,MAAM,CAACO,QAAQ,EACf,MAAM,KACP,CAAC;AACF","ignoreList":[]}