refactor: update import paths and benchmark discovery

Updated import paths to use direct module references instead of relative paths. Implemented dynamic benchmark discovery based on the contents of the tests/ directory, allowing for more flexible benchmark configuration without requiring code changes. This change improves maintainability and makes it easier to add new benchmarks.

scripts/convert_json_to_txt.py

@@ -13,7 +13,7 @@ from pathlib import Path
 # Добавляем путь к исходникам, чтобы импортировать base
 sys.path.insert(0, str(Path(__file__).parent.parent))
 
-from src.benchmarks.base import TEST_SEPARATOR
+from benchmark import TEST_SEPARATOR
 
 def convert_tests(test_dir: str) -> None:
     """Конвертирует все тесты в указанной директории."""