fix(mdx): robust parsing for payload data and ignore sentry pipe noise

tests/mdx-regex.test.ts

@@ -0,0 +1,17 @@
+import { describe, it, expect } from 'vitest';
+import { fixMdxDataProps } from '../lib/mdx-utils';
+
+describe('MDX Data Props Fixer', () => {
+  it('should correctly parse MDX with nested JSON containing }}', () => {
+    // This string simulates the exact structure that causes the bug in n2x2y.mdx
+    const mdxInput = `<Block type="productTabs" data={{"content":{"root":{"children":[]}},"id":"123"}} />`;
+
+    const result = fixMdxDataProps(mdxInput);
+
+    // The expected output should have the entire JSON object enclosed in data="{...}"
+    // and NO trailing characters left over from the regex truncating early.
+    const expected = `<Block type="productTabs" data="{&quot;content&quot;:{&quot;root&quot;:{&quot;children&quot;:[]}},&quot;id&quot;:&quot;123&quot;}" />`;
+
+    expect(result).toBe(expected);
+  });
+});