Fixed backslashes

routes/department_routes.py

@@ -10,7 +10,7 @@ from utils.auth import token_required, admin_required
 department_bp = Blueprint('departments', __name__)
 
 # Public route for creating a new department with first admin
-department_bp.route('/', methods=['POST'])(create_department)
+department_bp.route('', methods=['POST'])(create_department)
 
 # Routes that require authentication
 department_bp.route('/', methods=['GET'])(token_required(get_all_departments))