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/reakit/lib/Form/utils/getIn.js

@@ -0,0 +1,27 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var _rollupPluginBabelHelpers = require('../../_rollupPluginBabelHelpers-8f9a8751.js');
+
+function unstable_getIn(object, path, defaultValue) {
+  if (typeof path === "string") {
+    return object[path] == null ? defaultValue : object[path];
+  }
+
+  var result = object;
+
+  for (var _iterator = _rollupPluginBabelHelpers._createForOfIteratorHelperLoose(path), _step; !(_step = _iterator()).done;) {
+    var key = _step.value;
+    if (!(key in result)) return defaultValue;
+    result = result[key];
+  }
+
+  if (result == null) {
+    return defaultValue;
+  }
+
+  return result;
+}
+
+exports.unstable_getIn = unstable_getIn;

node_modules/reakit/lib/Form/utils/index.js

@@ -0,0 +1,17 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+require('../../_rollupPluginBabelHelpers-8f9a8751.js');
+var Form_utils_getIn = require('./getIn.js');
+require('reakit-utils/isObject');
+var Form_utils_setAllIn = require('./setAllIn.js');
+require('reakit-utils/toArray');
+require('reakit-utils/isInteger');
+var Form_utils_setIn = require('./setIn.js');
+
+
+
+exports.unstable_getIn = Form_utils_getIn.unstable_getIn;
+exports.unstable_setAllIn = Form_utils_setAllIn.unstable_setAllIn;
+exports.unstable_setIn = Form_utils_setIn.unstable_setIn;

node_modules/reakit/lib/Form/utils/setAllIn.js

@@ -0,0 +1,34 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var isObject = require('reakit-utils/isObject');
+
+function unstable_setAllIn(object, value) {
+  var typedObject = object;
+  var result = {};
+  var keys = Object.keys(object);
+
+  for (var _i = 0, _keys = keys; _i < _keys.length; _i++) {
+    var key = _keys[_i];
+    var val = typedObject[key];
+
+    if (Array.isArray(val)) {
+      result[key] = val.map(function (v) {
+        if (isObject.isObject(v)) {
+          return unstable_setAllIn(v, value);
+        }
+
+        return value;
+      });
+    } else if (isObject.isObject(val)) {
+      result[key] = unstable_setAllIn(val, value);
+    } else {
+      result[key] = value;
+    }
+  }
+
+  return result;
+}
+
+exports.unstable_setAllIn = unstable_setAllIn;

node_modules/reakit/lib/Form/utils/setIn.js

@@ -0,0 +1,30 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var _rollupPluginBabelHelpers = require('../../_rollupPluginBabelHelpers-8f9a8751.js');
+var toArray = require('reakit-utils/toArray');
+var isInteger = require('reakit-utils/isInteger');
+
+function unstable_setIn(object, path, value) {
+  var _objectSpread2;
+
+  var pathArray = toArray.toArray(path);
+  var key = pathArray[0],
+      keys = pathArray.slice(1);
+  if (key == null) return object;
+  var obj = isInteger.isInteger(key) ? object || [] : object || {};
+  var result = keys.length ? unstable_setIn(obj[key], keys, value) : value;
+
+  if (isInteger.isInteger(key)) {
+    if (object) {
+      return [].concat(object.slice(0, Number(key)), [result], object.slice(Number(key) + 1));
+    }
+
+    return [result];
+  }
+
+  return _rollupPluginBabelHelpers._objectSpread2(_rollupPluginBabelHelpers._objectSpread2({}, object), {}, (_objectSpread2 = {}, _objectSpread2[key] = result, _objectSpread2));
+}
+
+exports.unstable_setIn = unstable_setIn;