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/base-control/index.native.js

@@ -0,0 +1,23 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = BaseControl;
+var _react = require("react");
+var _reactNative = require("react-native");
+/**
+ * External dependencies
+ */
+
+function BaseControl({
+  label,
+  help,
+  children
+}) {
+  return (0, _react.createElement)(_reactNative.View, {
+    accessible: true,
+    accessibilityLabel: label
+  }, label && (0, _react.createElement)(_reactNative.Text, null, label), children, help && (0, _react.createElement)(_reactNative.Text, null, help));
+}
+//# sourceMappingURL=index.native.js.map