1. Fixed import paths:
- players.py: from .base → from ..services.base
- teams.py: from .base → from ..services.base
2. Added @classmethod decorators to PlayerService methods:
- get_players()
- search_players()
- get_player()
- update_player()
- patch_player()
- create_players()
- delete_player()
3. Updated all classmethods to use cls instead of self
Result: Router can now call service methods as static (PlayerService.get_players())