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/actual/regexp/constructor.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../stable/regexp/constructor');
+
+module.exports = parent;

node_modules/core-js/actual/regexp/dot-all.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../stable/regexp/dot-all');
+
+module.exports = parent;

node_modules/core-js/actual/regexp/escape.js

@@ -0,0 +1,5 @@
+'use strict';
+var parent = require('../../stable/regexp/escape');
+require('../../modules/esnext.regexp.escape');
+
+module.exports = parent;

node_modules/core-js/actual/regexp/flags.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../stable/regexp/flags');
+
+module.exports = parent;

node_modules/core-js/actual/regexp/index.js

@@ -0,0 +1,5 @@
+'use strict';
+var parent = require('../../stable/regexp');
+require('../../modules/esnext.regexp.escape');
+
+module.exports = parent;

node_modules/core-js/actual/regexp/match.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../stable/regexp/match');
+
+module.exports = parent;

node_modules/core-js/actual/regexp/replace.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../stable/regexp/replace');
+
+module.exports = parent;

node_modules/core-js/actual/regexp/search.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../stable/regexp/search');
+
+module.exports = parent;

node_modules/core-js/actual/regexp/split.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../stable/regexp/split');
+
+module.exports = parent;

node_modules/core-js/actual/regexp/sticky.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../stable/regexp/sticky');
+
+module.exports = parent;

node_modules/core-js/actual/regexp/test.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../stable/regexp/test');
+
+module.exports = parent;

node_modules/core-js/actual/regexp/to-string.js

@@ -0,0 +1,4 @@
+'use strict';
+var parent = require('../../stable/regexp/to-string');
+
+module.exports = parent;