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/@babel/preset-env/lib/polyfills/babel-7-plugins.cjs

@@ -0,0 +1,19 @@
+Object.defineProperties(exports, {
+  pluginCoreJS2: {
+    get: () => require("babel-plugin-polyfill-corejs2").default
+  },
+  pluginRegenerator: {
+    get: () => require("babel-plugin-polyfill-regenerator").default
+  },
+  legacyBabelPolyfillPlugin: {
+    get: () => require("./babel-polyfill.cjs")
+  },
+  removeRegeneratorEntryPlugin: {
+    get: () => require("./regenerator.cjs")
+  },
+  corejs2Polyfills: {
+    get: () => require("@babel/compat-data/corejs2-built-ins")
+  }
+});
+
+//# sourceMappingURL=babel-7-plugins.cjs.map