style: unify code formatting and import order

- Remove trailing whitespace and normalize blank lines
- Unify string quotes and line breaks for long lines
- Sort imports alphabetically across modules

nanobot/utils/__init__.py

@@ -1,5 +1,5 @@
 """Utility functions for nanobot."""
 
-from nanobot.utils.helpers import ensure_dir, get_workspace_path, get_data_path
+from nanobot.utils.helpers import ensure_dir, get_data_path, get_workspace_path
 
 __all__ = ["ensure_dir", "get_workspace_path", "get_data_path"]

nanobot/utils/helpers.py

@@ -1,8 +1,8 @@
 """Utility functions for nanobot."""
 
 import re
-from pathlib import Path
 from datetime import datetime
+from pathlib import Path
 
 
 def ensure_dir(path: Path) -> Path: