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/layout-animation/index.native.js

@@ -0,0 +1,16 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.performLayoutAnimation = performLayoutAnimation;
+var _reactNative = require("react-native");
+/**
+ * External dependencies
+ */
+
+const ANIMATION_DURATION = 300;
+function performLayoutAnimation(duration = ANIMATION_DURATION) {
+  _reactNative.LayoutAnimation.configureNext(_reactNative.LayoutAnimation.create(duration, _reactNative.LayoutAnimation.Types.easeInEaseOut, _reactNative.LayoutAnimation.Properties.opacity));
+}
+//# sourceMappingURL=index.native.js.map

node_modules/@wordpress/components/build/mobile/layout-animation/index.native.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["_reactNative","require","ANIMATION_DURATION","performLayoutAnimation","duration","LayoutAnimation","configureNext","create","Types","easeInEaseOut","Properties","opacity"],"sources":["@wordpress/components/src/mobile/layout-animation/index.native.js"],"sourcesContent":["/**\n * External dependencies\n */\nimport { LayoutAnimation } from 'react-native';\n\nconst ANIMATION_DURATION = 300;\n\nexport function performLayoutAnimation( duration = ANIMATION_DURATION ) {\n\tLayoutAnimation.configureNext(\n\t\tLayoutAnimation.create(\n\t\t\tduration,\n\t\t\tLayoutAnimation.Types.easeInEaseOut,\n\t\t\tLayoutAnimation.Properties.opacity\n\t\t)\n\t);\n}\n"],"mappings":";;;;;;AAGA,IAAAA,YAAA,GAAAC,OAAA;AAHA;AACA;AACA;;AAGA,MAAMC,kBAAkB,GAAG,GAAG;AAEvB,SAASC,sBAAsBA,CAAEC,QAAQ,GAAGF,kBAAkB,EAAG;EACvEG,4BAAe,CAACC,aAAa,CAC5BD,4BAAe,CAACE,MAAM,CACrBH,QAAQ,EACRC,4BAAe,CAACG,KAAK,CAACC,aAAa,EACnCJ,4BAAe,CAACK,UAAU,CAACC,OAC5B,CACD,CAAC;AACF"}