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-module/flex/flex-item/component.js

@@ -0,0 +1,39 @@
+import { createElement } from "react";
+/**
+ * External dependencies
+ */
+
+/**
+ * Internal dependencies
+ */
+
+import { contextConnect } from '../../context';
+import { View } from '../../view';
+import { useFlexItem } from './hook';
+function UnconnectedFlexItem(props, forwardedRef) {
+  const flexItemProps = useFlexItem(props);
+  return createElement(View, {
+    ...flexItemProps,
+    ref: forwardedRef
+  });
+}
+
+/**
+ * `FlexItem` is a primitive layout component that aligns content within layout
+ * containers like `Flex`.
+ *
+ * ```jsx
+ * import { Flex, FlexItem } from '@wordpress/components';
+ *
+ * function Example() {
+ *   return (
+ *     <Flex>
+ *       <FlexItem>...</FlexItem>
+ *     </Flex>
+ *   );
+ * }
+ * ```
+ */
+export const FlexItem = contextConnect(UnconnectedFlexItem, 'FlexItem');
+export default FlexItem;
+//# sourceMappingURL=component.js.map

node_modules/@wordpress/components/build-module/flex/flex-item/component.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["contextConnect","View","useFlexItem","UnconnectedFlexItem","props","forwardedRef","flexItemProps","createElement","ref","FlexItem"],"sources":["@wordpress/components/src/flex/flex-item/component.tsx"],"sourcesContent":["/**\n * External dependencies\n */\nimport type { ForwardedRef } from 'react';\n\n/**\n * Internal dependencies\n */\nimport type { WordPressComponentProps } from '../../context';\nimport { contextConnect } from '../../context';\nimport { View } from '../../view';\nimport { useFlexItem } from './hook';\nimport type { FlexItemProps } from '../types';\n\nfunction UnconnectedFlexItem(\n\tprops: WordPressComponentProps< FlexItemProps, 'div' >,\n\tforwardedRef: ForwardedRef< any >\n) {\n\tconst flexItemProps = useFlexItem( props );\n\n\treturn <View { ...flexItemProps } ref={ forwardedRef } />;\n}\n\n/**\n * `FlexItem` is a primitive layout component that aligns content within layout\n * containers like `Flex`.\n *\n * ```jsx\n * import { Flex, FlexItem } from '@wordpress/components';\n *\n * function Example() {\n *   return (\n *     <Flex>\n *       <FlexItem>...</FlexItem>\n *     </Flex>\n *   );\n * }\n * ```\n */\nexport const FlexItem = contextConnect( UnconnectedFlexItem, 'FlexItem' );\n\nexport default FlexItem;\n"],"mappings":";AAAA;AACA;AACA;;AAGA;AACA;AACA;;AAEA,SAASA,cAAc,QAAQ,eAAe;AAC9C,SAASC,IAAI,QAAQ,YAAY;AACjC,SAASC,WAAW,QAAQ,QAAQ;AAGpC,SAASC,mBAAmBA,CAC3BC,KAAsD,EACtDC,YAAiC,EAChC;EACD,MAAMC,aAAa,GAAGJ,WAAW,CAAEE,KAAM,CAAC;EAE1C,OAAOG,aAAA,CAACN,IAAI;IAAA,GAAMK,aAAa;IAAGE,GAAG,EAAGH;EAAc,CAAE,CAAC;AAC1D;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,OAAO,MAAMI,QAAQ,GAAGT,cAAc,CAAEG,mBAAmB,EAAE,UAAW,CAAC;AAEzE,eAAeM,QAAQ"}

node_modules/@wordpress/components/build-module/flex/flex-item/hook.js

@@ -0,0 +1,34 @@
+/**
+ * External dependencies
+ */
+
+import { css } from '@emotion/react';
+
+/**
+ * Internal dependencies
+ */
+
+import { useContextSystem } from '../../context';
+import { useFlexContext } from '../context';
+import * as styles from '../styles';
+import { useCx } from '../../utils/hooks/use-cx';
+export function useFlexItem(props) {
+  const {
+    className,
+    display: displayProp,
+    isBlock = false,
+    ...otherProps
+  } = useContextSystem(props, 'FlexItem');
+  const sx = {};
+  const contextDisplay = useFlexContext().flexItemDisplay;
+  sx.Base = /*#__PURE__*/css({
+    display: displayProp || contextDisplay
+  }, process.env.NODE_ENV === "production" ? "" : ";label:sx-Base;", process.env.NODE_ENV === "production" ? "" : "/*# sourceMappingURL=data:application/json;charset=utf-8;base64,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 */");
+  const cx = useCx();
+  const classes = cx(styles.Item, sx.Base, isBlock && styles.block, className);
+  return {
+    ...otherProps,
+    className: classes
+  };
+}
+//# sourceMappingURL=hook.js.map

node_modules/@wordpress/components/build-module/flex/flex-item/hook.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["css","useContextSystem","useFlexContext","styles","useCx","useFlexItem","props","className","display","displayProp","isBlock","otherProps","sx","contextDisplay","flexItemDisplay","Base","process","env","NODE_ENV","cx","classes","Item","block"],"sources":["@wordpress/components/src/flex/flex-item/hook.ts"],"sourcesContent":["/**\n * External dependencies\n */\nimport type { SerializedStyles } from '@emotion/react';\nimport { css } from '@emotion/react';\n\n/**\n * Internal dependencies\n */\nimport type { WordPressComponentProps } from '../../context';\nimport { useContextSystem } from '../../context';\nimport { useFlexContext } from '../context';\nimport * as styles from '../styles';\nimport { useCx } from '../../utils/hooks/use-cx';\nimport type { FlexItemProps } from '../types';\n\nexport function useFlexItem(\n\tprops: WordPressComponentProps< FlexItemProps, 'div' >\n) {\n\tconst {\n\t\tclassName,\n\t\tdisplay: displayProp,\n\t\tisBlock = false,\n\t\t...otherProps\n\t} = useContextSystem( props, 'FlexItem' );\n\n\tconst sx: {\n\t\tBase?: SerializedStyles;\n\t} = {};\n\n\tconst contextDisplay = useFlexContext().flexItemDisplay;\n\n\tsx.Base = css( {\n\t\tdisplay: displayProp || contextDisplay,\n\t} );\n\n\tconst cx = useCx();\n\n\tconst classes = cx(\n\t\tstyles.Item,\n\t\tsx.Base,\n\t\tisBlock && styles.block,\n\t\tclassName\n\t);\n\n\treturn {\n\t\t...otherProps,\n\t\tclassName: classes,\n\t};\n}\n"],"mappings":"AAAA;AACA;AACA;;AAEA,SAASA,GAAG,QAAQ,gBAAgB;;AAEpC;AACA;AACA;;AAEA,SAASC,gBAAgB,QAAQ,eAAe;AAChD,SAASC,cAAc,QAAQ,YAAY;AAC3C,OAAO,KAAKC,MAAM,MAAM,WAAW;AACnC,SAASC,KAAK,QAAQ,0BAA0B;AAGhD,OAAO,SAASC,WAAWA,CAC1BC,KAAsD,EACrD;EACD,MAAM;IACLC,SAAS;IACTC,OAAO,EAAEC,WAAW;IACpBC,OAAO,GAAG,KAAK;IACf,GAAGC;EACJ,CAAC,GAAGV,gBAAgB,CAAEK,KAAK,EAAE,UAAW,CAAC;EAEzC,MAAMM,EAEL,GAAG,CAAC,CAAC;EAEN,MAAMC,cAAc,GAAGX,cAAc,CAAC,CAAC,CAACY,eAAe;EAEvDF,EAAE,CAACG,IAAI,gBAAGf,GAAG,CAAE;IACdQ,OAAO,EAAEC,WAAW,IAAII;EACzB,CAAC,EAAAG,OAAA,CAAAC,GAAA,CAAAC,QAAA,4CAAAF,OAAA,CAAAC,GAAA,CAAAC,QAAA,kxDAAC,CAAC;EAEH,MAAMC,EAAE,GAAGf,KAAK,CAAC,CAAC;EAElB,MAAMgB,OAAO,GAAGD,EAAE,CACjBhB,MAAM,CAACkB,IAAI,EACXT,EAAE,CAACG,IAAI,EACPL,OAAO,IAAIP,MAAM,CAACmB,KAAK,EACvBf,SACD,CAAC;EAED,OAAO;IACN,GAAGI,UAAU;IACbJ,SAAS,EAAEa;EACZ,CAAC;AACF"}

node_modules/@wordpress/components/build-module/flex/flex-item/index.js

@@ -0,0 +1,3 @@
+export { default } from './component';
+export { useFlexItem } from './hook';
+//# sourceMappingURL=index.js.map

node_modules/@wordpress/components/build-module/flex/flex-item/index.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["default","useFlexItem"],"sources":["@wordpress/components/src/flex/flex-item/index.ts"],"sourcesContent":["export { default } from './component';\nexport { useFlexItem } from './hook';\n"],"mappings":"AAAA,SAASA,OAAO,QAAQ,aAAa;AACrC,SAASC,WAAW,QAAQ,QAAQ"}