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/core-js-pure/full/function/bind.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../actual/function/bind');
+
+module.exports = parent;

node_modules/core-js-pure/full/function/demethodize.js

@@ -0,0 +1,5 @@
+'use strict';
+require('../../modules/esnext.function.demethodize');
+var entryUnbind = require('../../internals/entry-unbind');
+
+module.exports = entryUnbind('Function', 'demethodize');

node_modules/core-js-pure/full/function/has-instance.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../actual/function/has-instance');
+
+module.exports = parent;

node_modules/core-js-pure/full/function/index.js

@@ -0,0 +1,9 @@
+'use strict';
+var parent = require('../../actual/function');
+require('../../modules/esnext.function.demethodize');
+require('../../modules/esnext.function.is-callable');
+require('../../modules/esnext.function.is-constructor');
+// TODO: Remove from `core-js@4`
+require('../../modules/esnext.function.un-this');
+
+module.exports = parent;

node_modules/core-js-pure/full/function/is-callable.js

@@ -0,0 +1,5 @@
+'use strict';
+require('../../modules/esnext.function.is-callable');
+var path = require('../../internals/path');
+
+module.exports = path.Function.isCallable;

node_modules/core-js-pure/full/function/is-constructor.js

@@ -0,0 +1,5 @@
+'use strict';
+require('../../modules/esnext.function.is-constructor');
+var path = require('../../internals/path');
+
+module.exports = path.Function.isConstructor;

node_modules/core-js-pure/full/function/metadata.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../actual/function/metadata');
+
+module.exports = parent;

node_modules/core-js-pure/full/function/name.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../actual/function/name');
+
+module.exports = parent;

node_modules/core-js-pure/full/function/un-this.js

@@ -0,0 +1,5 @@
+'use strict';
+require('../../modules/esnext.function.un-this');
+var entryUnbind = require('../../internals/entry-unbind');
+
+module.exports = entryUnbind('Function', 'unThis');

node_modules/core-js-pure/full/function/virtual/bind.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../../actual/function/virtual/bind');
+
+module.exports = parent;

node_modules/core-js-pure/full/function/virtual/demethodize.js

@@ -0,0 +1,5 @@
+'use strict';
+require('../../../modules/esnext.function.demethodize');
+var getBuiltInPrototypeMethod = require('../../../internals/get-built-in-prototype-method');
+
+module.exports = getBuiltInPrototypeMethod('Function', 'demethodize');

node_modules/core-js-pure/full/function/virtual/index.js

@@ -0,0 +1,7 @@
+'use strict';
+var parent = require('../../../actual/function/virtual');
+require('../../../modules/esnext.function.demethodize');
+// TODO: Remove from `core-js@4`
+require('../../../modules/esnext.function.un-this');
+
+module.exports = parent;

node_modules/core-js-pure/full/function/virtual/un-this.js

@@ -0,0 +1,5 @@
+'use strict';
+require('../../../modules/esnext.function.un-this');
+var getBuiltInPrototypeMethod = require('../../../internals/get-built-in-prototype-method');
+
+module.exports = getBuiltInPrototypeMethod('Function', 'unThis');