chore: import upstream snapshot with attribution

apps/sim/lib/core/utils/react-node-text.ts

@@ -0,0 +1,14 @@
+import { isValidElement, type ReactNode } from 'react'
+
+/**
+ * Recursively extracts plain text content from a React node tree.
+ */
+export function extractTextContent(node: ReactNode): string {
+  if (typeof node === 'string') return node
+  if (typeof node === 'number') return String(node)
+  if (!node) return ''
+  if (Array.isArray(node)) return node.map(extractTextContent).join('')
+  if (isValidElement(node))
+    return extractTextContent((node.props as { children?: ReactNode }).children)
+  return ''
+}