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/compose/build-module/hooks/use-copy-on-click/index.js

@@ -0,0 +1,75 @@
+/**
+ * External dependencies
+ */
+import Clipboard from 'clipboard';
+
+/**
+ * WordPress dependencies
+ */
+import { useRef, useEffect, useState } from '@wordpress/element';
+import deprecated from '@wordpress/deprecated';
+
+/* eslint-disable jsdoc/no-undefined-types */
+/**
+ * Copies the text to the clipboard when the element is clicked.
+ *
+ * @deprecated
+ *
+ * @param {import('react').RefObject<string | Element | NodeListOf<Element>>} ref       Reference with the element.
+ * @param {string|Function}                                                   text      The text to copy.
+ * @param {number}                                                            [timeout] Optional timeout to reset the returned
+ *                                                                                      state. 4 seconds by default.
+ *
+ * @return {boolean} Whether or not the text has been copied. Resets after the
+ *                   timeout.
+ */
+export default function useCopyOnClick(ref, text, timeout = 4000) {
+  /* eslint-enable jsdoc/no-undefined-types */
+  deprecated('wp.compose.useCopyOnClick', {
+    since: '5.8',
+    alternative: 'wp.compose.useCopyToClipboard'
+  });
+
+  /** @type {import('react').MutableRefObject<Clipboard | undefined>} */
+  const clipboard = useRef();
+  const [hasCopied, setHasCopied] = useState(false);
+  useEffect(() => {
+    /** @type {number | undefined} */
+    let timeoutId;
+    if (!ref.current) {
+      return;
+    }
+
+    // Clipboard listens to click events.
+    clipboard.current = new Clipboard(ref.current, {
+      text: () => typeof text === 'function' ? text() : text
+    });
+    clipboard.current.on('success', ({
+      clearSelection,
+      trigger
+    }) => {
+      // Clearing selection will move focus back to the triggering button,
+      // ensuring that it is not reset to the body, and further that it is
+      // kept within the rendered node.
+      clearSelection();
+
+      // Handle ClipboardJS focus bug, see https://github.com/zenorocha/clipboard.js/issues/680
+      if (trigger) {
+        /** @type {HTMLElement} */trigger.focus();
+      }
+      if (timeout) {
+        setHasCopied(true);
+        clearTimeout(timeoutId);
+        timeoutId = setTimeout(() => setHasCopied(false), timeout);
+      }
+    });
+    return () => {
+      if (clipboard.current) {
+        clipboard.current.destroy();
+      }
+      clearTimeout(timeoutId);
+    };
+  }, [text, timeout, setHasCopied]);
+  return hasCopied;
+}
+//# sourceMappingURL=index.js.map

node_modules/@wordpress/compose/build-module/hooks/use-copy-on-click/index.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["Clipboard","useRef","useEffect","useState","deprecated","useCopyOnClick","ref","text","timeout","since","alternative","clipboard","hasCopied","setHasCopied","timeoutId","current","on","clearSelection","trigger","focus","clearTimeout","setTimeout","destroy"],"sources":["@wordpress/compose/src/hooks/use-copy-on-click/index.js"],"sourcesContent":["/**\n * External dependencies\n */\nimport Clipboard from 'clipboard';\n\n/**\n * WordPress dependencies\n */\nimport { useRef, useEffect, useState } from '@wordpress/element';\nimport deprecated from '@wordpress/deprecated';\n\n/* eslint-disable jsdoc/no-undefined-types */\n/**\n * Copies the text to the clipboard when the element is clicked.\n *\n * @deprecated\n *\n * @param {import('react').RefObject<string | Element | NodeListOf<Element>>} ref       Reference with the element.\n * @param {string|Function}                                                   text      The text to copy.\n * @param {number}                                                            [timeout] Optional timeout to reset the returned\n *                                                                                      state. 4 seconds by default.\n *\n * @return {boolean} Whether or not the text has been copied. Resets after the\n *                   timeout.\n */\nexport default function useCopyOnClick( ref, text, timeout = 4000 ) {\n\t/* eslint-enable jsdoc/no-undefined-types */\n\tdeprecated( 'wp.compose.useCopyOnClick', {\n\t\tsince: '5.8',\n\t\talternative: 'wp.compose.useCopyToClipboard',\n\t} );\n\n\t/** @type {import('react').MutableRefObject<Clipboard | undefined>} */\n\tconst clipboard = useRef();\n\tconst [ hasCopied, setHasCopied ] = useState( false );\n\n\tuseEffect( () => {\n\t\t/** @type {number | undefined} */\n\t\tlet timeoutId;\n\n\t\tif ( ! ref.current ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Clipboard listens to click events.\n\t\tclipboard.current = new Clipboard( ref.current, {\n\t\t\ttext: () => ( typeof text === 'function' ? text() : text ),\n\t\t} );\n\n\t\tclipboard.current.on( 'success', ( { clearSelection, trigger } ) => {\n\t\t\t// Clearing selection will move focus back to the triggering button,\n\t\t\t// ensuring that it is not reset to the body, and further that it is\n\t\t\t// kept within the rendered node.\n\t\t\tclearSelection();\n\n\t\t\t// Handle ClipboardJS focus bug, see https://github.com/zenorocha/clipboard.js/issues/680\n\t\t\tif ( trigger ) {\n\t\t\t\t/** @type {HTMLElement} */ ( trigger ).focus();\n\t\t\t}\n\n\t\t\tif ( timeout ) {\n\t\t\t\tsetHasCopied( true );\n\t\t\t\tclearTimeout( timeoutId );\n\t\t\t\ttimeoutId = setTimeout( () => setHasCopied( false ), timeout );\n\t\t\t}\n\t\t} );\n\n\t\treturn () => {\n\t\t\tif ( clipboard.current ) {\n\t\t\t\tclipboard.current.destroy();\n\t\t\t}\n\t\t\tclearTimeout( timeoutId );\n\t\t};\n\t}, [ text, timeout, setHasCopied ] );\n\n\treturn hasCopied;\n}\n"],"mappings":"AAAA;AACA;AACA;AACA,OAAOA,SAAS,MAAM,WAAW;;AAEjC;AACA;AACA;AACA,SAASC,MAAM,EAAEC,SAAS,EAAEC,QAAQ,QAAQ,oBAAoB;AAChE,OAAOC,UAAU,MAAM,uBAAuB;;AAE9C;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,eAAe,SAASC,cAAcA,CAAEC,GAAG,EAAEC,IAAI,EAAEC,OAAO,GAAG,IAAI,EAAG;EACnE;EACAJ,UAAU,CAAE,2BAA2B,EAAE;IACxCK,KAAK,EAAE,KAAK;IACZC,WAAW,EAAE;EACd,CAAE,CAAC;;EAEH;EACA,MAAMC,SAAS,GAAGV,MAAM,CAAC,CAAC;EAC1B,MAAM,CAAEW,SAAS,EAAEC,YAAY,CAAE,GAAGV,QAAQ,CAAE,KAAM,CAAC;EAErDD,SAAS,CAAE,MAAM;IAChB;IACA,IAAIY,SAAS;IAEb,IAAK,CAAER,GAAG,CAACS,OAAO,EAAG;MACpB;IACD;;IAEA;IACAJ,SAAS,CAACI,OAAO,GAAG,IAAIf,SAAS,CAAEM,GAAG,CAACS,OAAO,EAAE;MAC/CR,IAAI,EAAEA,CAAA,KAAQ,OAAOA,IAAI,KAAK,UAAU,GAAGA,IAAI,CAAC,CAAC,GAAGA;IACrD,CAAE,CAAC;IAEHI,SAAS,CAACI,OAAO,CAACC,EAAE,CAAE,SAAS,EAAE,CAAE;MAAEC,cAAc;MAAEC;IAAQ,CAAC,KAAM;MACnE;MACA;MACA;MACAD,cAAc,CAAC,CAAC;;MAEhB;MACA,IAAKC,OAAO,EAAG;QACd,0BAA6BA,OAAO,CAAGC,KAAK,CAAC,CAAC;MAC/C;MAEA,IAAKX,OAAO,EAAG;QACdK,YAAY,CAAE,IAAK,CAAC;QACpBO,YAAY,CAAEN,SAAU,CAAC;QACzBA,SAAS,GAAGO,UAAU,CAAE,MAAMR,YAAY,CAAE,KAAM,CAAC,EAAEL,OAAQ,CAAC;MAC/D;IACD,CAAE,CAAC;IAEH,OAAO,MAAM;MACZ,IAAKG,SAAS,CAACI,OAAO,EAAG;QACxBJ,SAAS,CAACI,OAAO,CAACO,OAAO,CAAC,CAAC;MAC5B;MACAF,YAAY,CAAEN,SAAU,CAAC;IAC1B,CAAC;EACF,CAAC,EAAE,CAAEP,IAAI,EAAEC,OAAO,EAAEK,YAAY,CAAG,CAAC;EAEpC,OAAOD,SAAS;AACjB","ignoreList":[]}