CLose story 1.2

src/utils/uuid.js

@@ -0,0 +1,7 @@
+/**
+ * Generates a unique operation ID for PendingOp tracking.
+ * @returns {string} A unique identifier string.
+ */
+export function generateOpId() {
+  return `${Date.now()}-${Math.random().toString(36).slice(2, 9)}`;
+}