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/@babel/plugin-transform-reserved-words/lib/index.js

@@ -0,0 +1,23 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var _helperPluginUtils = require("@babel/helper-plugin-utils");
+var _core = require("@babel/core");
+var _default = exports.default = (0, _helperPluginUtils.declare)(api => {
+  api.assertVersion(7);
+  return {
+    name: "transform-reserved-words",
+    visitor: {
+      "BindingIdentifier|ReferencedIdentifier"(path) {
+        if (!_core.types.isValidES3Identifier(path.node.name)) {
+          path.scope.rename(path.node.name);
+        }
+      }
+    }
+  };
+});
+
+//# sourceMappingURL=index.js.map

node_modules/@babel/plugin-transform-reserved-words/lib/index.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["_helperPluginUtils","require","_core","_default","exports","default","declare","api","assertVersion","name","visitor","BindingIdentifier|ReferencedIdentifier","path","t","isValidES3Identifier","node","scope","rename"],"sources":["../src/index.ts"],"sourcesContent":["import { declare } from \"@babel/helper-plugin-utils\";\nimport { types as t, type NodePath } from \"@babel/core\";\n\nexport default declare(api => {\n  api.assertVersion(REQUIRED_VERSION(7));\n\n  return {\n    name: \"transform-reserved-words\",\n\n    visitor: {\n      \"BindingIdentifier|ReferencedIdentifier\"(path: NodePath<t.Identifier>) {\n        if (!t.isValidES3Identifier(path.node.name)) {\n          path.scope.rename(path.node.name);\n        }\n      },\n    },\n  };\n});\n"],"mappings":";;;;;;AAAA,IAAAA,kBAAA,GAAAC,OAAA;AACA,IAAAC,KAAA,GAAAD,OAAA;AAAwD,IAAAE,QAAA,GAAAC,OAAA,CAAAC,OAAA,GAEzC,IAAAC,0BAAO,EAACC,GAAG,IAAI;EAC5BA,GAAG,CAACC,aAAa,CAAkB,CAAE,CAAC;EAEtC,OAAO;IACLC,IAAI,EAAE,0BAA0B;IAEhCC,OAAO,EAAE;MACP,wCAAwCC,CAACC,IAA4B,EAAE;QACrE,IAAI,CAACC,WAAC,CAACC,oBAAoB,CAACF,IAAI,CAACG,IAAI,CAACN,IAAI,CAAC,EAAE;UAC3CG,IAAI,CAACI,KAAK,CAACC,MAAM,CAACL,IAAI,CAACG,IAAI,CAACN,IAAI,CAAC;QACnC;MACF;IACF;EACF,CAAC;AACH,CAAC,CAAC","ignoreList":[]}