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/eslint/conf/replacements.json

@@ -0,0 +1,22 @@
+{
+    "rules": {
+        "generator-star": ["generator-star-spacing"],
+        "global-strict": ["strict"],
+        "no-arrow-condition": ["no-confusing-arrow", "no-constant-condition"],
+        "no-comma-dangle": ["comma-dangle"],
+        "no-empty-class": ["no-empty-character-class"],
+        "no-empty-label": ["no-labels"],
+        "no-extra-strict": ["strict"],
+        "no-reserved-keys": ["quote-props"],
+        "no-space-before-semi": ["semi-spacing"],
+        "no-wrap-func": ["no-extra-parens"],
+        "space-after-function-name": ["space-before-function-paren"],
+        "space-after-keywords": ["keyword-spacing"],
+        "space-before-function-parentheses": ["space-before-function-paren"],
+        "space-before-keywords": ["keyword-spacing"],
+        "space-in-brackets": ["object-curly-spacing", "array-bracket-spacing", "computed-property-spacing"],
+        "space-return-throw-case": ["keyword-spacing"],
+        "space-unary-word-ops": ["space-unary-ops"],
+        "spaced-line-comment": ["spaced-comment"]
+    }
+}