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/table/dist/src/drawTable.js

@@ -0,0 +1,31 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.drawTable = void 0;
+const drawBorder_1 = require("./drawBorder");
+const drawContent_1 = require("./drawContent");
+const drawRow_1 = require("./drawRow");
+const utils_1 = require("./utils");
+const drawTable = (rows, outputColumnWidths, rowHeights, config) => {
+    const { drawHorizontalLine, singleLine, } = config;
+    const contents = (0, utils_1.groupBySizes)(rows, rowHeights).map((group, groupIndex) => {
+        return group.map((row) => {
+            return (0, drawRow_1.drawRow)(row, { ...config,
+                rowIndex: groupIndex });
+        }).join('');
+    });
+    return (0, drawContent_1.drawContent)({ contents,
+        drawSeparator: (index, size) => {
+            // Top/bottom border
+            if (index === 0 || index === size) {
+                return drawHorizontalLine(index, size);
+            }
+            return !singleLine && drawHorizontalLine(index, size);
+        },
+        elementType: 'row',
+        rowIndex: -1,
+        separatorGetter: (0, drawBorder_1.createTableBorderGetter)(outputColumnWidths, { ...config,
+            rowCount: contents.length }),
+        spanningCellManager: config.spanningCellManager });
+};
+exports.drawTable = drawTable;
+//# sourceMappingURL=drawTable.js.map