fix: nested loops work - preserve inner loop_end markers

test_generator.py

@@ -9,7 +9,7 @@ sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
 
 from dokogen.models import Company, CommissionMember, InformationSystem
 from dokogen.variables import build_replacements
-from dokogen.generator import process_template, _expand_loops_in_zip
+from dokogen.generator import process_template, expand_loops_in_zip
 
 def create_test_template():
     """Creates a test .docx with nested loops for verification."""
@@ -108,7 +108,7 @@ def test_zip_loop_expansion():
     
     # Process with ZIP-level loop expansion
     print('\nProcessing loops via ZIP...')
-    result_path = _expand_loops_in_zip(template_path, loops)
+    result_path = expand_loops_in_zip(template_path, loops)
     
     # Verify result
     with zipfile.ZipFile(result_path, 'r') as z: