NRL-1215 - Revert "NRL-1215 Remove commented-out code for duplicate detection in JSON arrays"

This reverts commit 2f2da7f.

Author: axelkrastek1-nhs

layer/nrlf/core/json_duplicate_checker.py

@@ -92,6 +92,12 @@ def traverse_array(self, items: JsonArray, path: list[str]) -> None:
             else:
                 seen_elements.add(serialized_item)
 
+            # if item in seen_elements:
+            #     duplicate_path = f"{array_path}[{idx}]"
+            #     self.duplicate_keys_and_paths.setdefault(duplicate_path, []).append(f"{base_path[0]}.{duplicate_path}")
+            #     print(f"Found duplicate array element at path: {duplicate_path}")
+            # else:
+            #     seen_elements.append(item)
             if not isinstance(item, (list, tuple)):
                 continue
             self.process_collection(item, base_path, f"{array_path}[{idx}]")