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/mobile/gridicons/index.native.js

@@ -0,0 +1,44 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.search = exports.refresh = exports.posts = exports.pages = exports.noticeOutline = exports.empty = exports.default = exports.clipboard = void 0;
+var _react = require("react");
+var _primitives = require("@wordpress/primitives");
+/**
+ * WordPress dependencies
+ */
+
+const fromPathData24x24 = pathData => (0, _react.createElement)(_primitives.SVG, {
+  xmlns: "http://www.w3.org/2000/svg",
+  viewBox: "0 0 24 24"
+}, (0, _react.createElement)(_primitives.Path, {
+  d: pathData
+}));
+const clipboard = fromPathData24x24('M16 18H8v-2h8v2zm0-6H8v2h8v-2zm2-9h-2v2h2v15H6V5h2V3H6a2 2 0 00-2 2v15a2 2 0 002 2h12a2 2 0 002-2V5a2 2 0 00-2-2zm-4 2V4a2 2 0 10-4 0v1a2 2 0 00-2 2v1h8V7a2 2 0 00-2-2z');
+exports.clipboard = clipboard;
+const posts = fromPathData24x24('M16 19H3v-2h13v2zm5-10H3v2h18V9zM3 5v2h11V5H3zm14 0v2h4V5h-4zm-6 8v2h10v-2H11zm-8 0v2h5v-2H3z');
+exports.posts = posts;
+const pages = fromPathData24x24('M16 8H8V6h8v2zm0 2H8v2h8v-2zm4-6v12l-6 6H6c-1.105 0-2-.895-2-2V4c0-1.105.895-2 2-2h12c1.105 0 2 .895 2 2zm-2 10V4H6v16h6v-4c0-1.105.895-2 2-2h4z');
+exports.pages = pages;
+const refresh = fromPathData24x24('M17.91 14c-.478 2.833-2.943 5-5.91 5-3.308 0-6-2.692-6-6s2.692-6 6-6h2.172l-2.086 2.086L13.5 10.5 18 6l-4.5-4.5-1.414 1.414L14.172 5H12c-4.418 0-8 3.582-8 8s3.582 8 8 8c4.08 0 7.438-3.055 7.93-7h-2.02z');
+exports.refresh = refresh;
+const noticeOutline = fromPathData24x24('M12 4c4.41 0 8 3.59 8 8s-3.59 8-8 8-8-3.59-8-8 3.59-8 8-8m0-2C6.477 2 2 6.477 2 12s4.477 10 10 10 10-4.477 10-10S17.523 2 12 2zm1 13h-2v2h2v-2zm-2-2h2l.5-6h-3l.5 6z');
+exports.noticeOutline = noticeOutline;
+const empty = (0, _react.createElement)(_primitives.SVG, {
+  xmlns: "http://www.w3.org/2000/svg",
+  viewBox: "0 0 24 24"
+});
+exports.empty = empty;
+const search = fromPathData24x24('M21,19l-5.154-5.154C16.574,12.742,17,11.421,17,10c0-3.866-3.134-7-7-7s-7,3.134-7,7c0,3.866,3.134,7,7,7 c1.421,0,2.742-0.426,3.846-1.154L19,21L21,19z M5,10c0-2.757,2.243-5,5-5s5,2.243,5,5s-2.243,5-5,5S5,12.757,5,10z');
+exports.search = search;
+var _default = {
+  empty,
+  posts,
+  pages,
+  refresh,
+  search
+};
+exports.default = _default;
+//# sourceMappingURL=index.native.js.map

node_modules/@wordpress/components/build/mobile/gridicons/index.native.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["_primitives","require","fromPathData24x24","pathData","_react","createElement","SVG","xmlns","viewBox","Path","d","clipboard","exports","posts","pages","refresh","noticeOutline","empty","search","_default","default"],"sources":["@wordpress/components/src/mobile/gridicons/index.native.js"],"sourcesContent":["/**\n * WordPress dependencies\n */\nimport { SVG, Path } from '@wordpress/primitives';\n\nconst fromPathData24x24 = ( pathData ) => (\n\t<SVG xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 24 24\">\n\t\t<Path d={ pathData } />\n\t</SVG>\n);\n\nexport const clipboard = fromPathData24x24(\n\t'M16 18H8v-2h8v2zm0-6H8v2h8v-2zm2-9h-2v2h2v15H6V5h2V3H6a2 2 0 00-2 2v15a2 2 0 002 2h12a2 2 0 002-2V5a2 2 0 00-2-2zm-4 2V4a2 2 0 10-4 0v1a2 2 0 00-2 2v1h8V7a2 2 0 00-2-2z'\n);\nexport const posts = fromPathData24x24(\n\t'M16 19H3v-2h13v2zm5-10H3v2h18V9zM3 5v2h11V5H3zm14 0v2h4V5h-4zm-6 8v2h10v-2H11zm-8 0v2h5v-2H3z'\n);\nexport const pages = fromPathData24x24(\n\t'M16 8H8V6h8v2zm0 2H8v2h8v-2zm4-6v12l-6 6H6c-1.105 0-2-.895-2-2V4c0-1.105.895-2 2-2h12c1.105 0 2 .895 2 2zm-2 10V4H6v16h6v-4c0-1.105.895-2 2-2h4z'\n);\nexport const refresh = fromPathData24x24(\n\t'M17.91 14c-.478 2.833-2.943 5-5.91 5-3.308 0-6-2.692-6-6s2.692-6 6-6h2.172l-2.086 2.086L13.5 10.5 18 6l-4.5-4.5-1.414 1.414L14.172 5H12c-4.418 0-8 3.582-8 8s3.582 8 8 8c4.08 0 7.438-3.055 7.93-7h-2.02z'\n);\nexport const noticeOutline = fromPathData24x24(\n\t'M12 4c4.41 0 8 3.59 8 8s-3.59 8-8 8-8-3.59-8-8 3.59-8 8-8m0-2C6.477 2 2 6.477 2 12s4.477 10 10 10 10-4.477 10-10S17.523 2 12 2zm1 13h-2v2h2v-2zm-2-2h2l.5-6h-3l.5 6z'\n);\nexport const empty = (\n\t<SVG xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 24 24\" />\n);\nexport const search = fromPathData24x24(\n\t'M21,19l-5.154-5.154C16.574,12.742,17,11.421,17,10c0-3.866-3.134-7-7-7s-7,3.134-7,7c0,3.866,3.134,7,7,7 c1.421,0,2.742-0.426,3.846-1.154L19,21L21,19z M5,10c0-2.757,2.243-5,5-5s5,2.243,5,5s-2.243,5-5,5S5,12.757,5,10z'\n);\nexport default {\n\tempty,\n\tposts,\n\tpages,\n\trefresh,\n\tsearch,\n};\n"],"mappings":";;;;;;;AAGA,IAAAA,WAAA,GAAAC,OAAA;AAHA;AACA;AACA;;AAGA,MAAMC,iBAAiB,GAAKC,QAAQ,IACnC,IAAAC,MAAA,CAAAC,aAAA,EAACL,WAAA,CAAAM,GAAG;EAACC,KAAK,EAAC,4BAA4B;EAACC,OAAO,EAAC;AAAW,GAC1D,IAAAJ,MAAA,CAAAC,aAAA,EAACL,WAAA,CAAAS,IAAI;EAACC,CAAC,EAAGP;AAAU,CAAE,CAClB,CACL;AAEM,MAAMQ,SAAS,GAAGT,iBAAiB,CACzC,0KACD,CAAC;AAACU,OAAA,CAAAD,SAAA,GAAAA,SAAA;AACK,MAAME,KAAK,GAAGX,iBAAiB,CACrC,+FACD,CAAC;AAACU,OAAA,CAAAC,KAAA,GAAAA,KAAA;AACK,MAAMC,KAAK,GAAGZ,iBAAiB,CACrC,kJACD,CAAC;AAACU,OAAA,CAAAE,KAAA,GAAAA,KAAA;AACK,MAAMC,OAAO,GAAGb,iBAAiB,CACvC,2MACD,CAAC;AAACU,OAAA,CAAAG,OAAA,GAAAA,OAAA;AACK,MAAMC,aAAa,GAAGd,iBAAiB,CAC7C,sKACD,CAAC;AAACU,OAAA,CAAAI,aAAA,GAAAA,aAAA;AACK,MAAMC,KAAK,GACjB,IAAAb,MAAA,CAAAC,aAAA,EAACL,WAAA,CAAAM,GAAG;EAACC,KAAK,EAAC,4BAA4B;EAACC,OAAO,EAAC;AAAW,CAAE,CAC7D;AAACI,OAAA,CAAAK,KAAA,GAAAA,KAAA;AACK,MAAMC,MAAM,GAAGhB,iBAAiB,CACtC,wNACD,CAAC;AAACU,OAAA,CAAAM,MAAA,GAAAA,MAAA;AAAA,IAAAC,QAAA,GACa;EACdF,KAAK;EACLJ,KAAK;EACLC,KAAK;EACLC,OAAO;EACPG;AACD,CAAC;AAAAN,OAAA,CAAAQ,OAAA,GAAAD,QAAA"}