refactor: improve code formatting and organization across multiple files

backend/app/models/__init__.py

@@ -1,39 +1,39 @@
 from .auth import (
-	AuthResponse,
-	LoginRequest,
-	RegisterRequest,
-	TokenPayload,
-	TokenResponse,
-	UserInDB,
-	UserPublic,
+    AuthResponse,
+    LoginRequest,
+    RegisterRequest,
+    TokenPayload,
+    TokenResponse,
+    UserInDB,
+    UserPublic,
 )
 from .base import (
-	StationCreate,
-	StationModel,
-	TrackCreate,
-	TrackModel,
-	TrainScheduleCreate,
-	TrainCreate,
-	TrainModel,
-	UserCreate,
-	to_camel,
+    StationCreate,
+    StationModel,
+    TrackCreate,
+    TrackModel,
+    TrainCreate,
+    TrainModel,
+    TrainScheduleCreate,
+    UserCreate,
+    to_camel,
 )
 
 __all__ = [
-	"LoginRequest",
-	"RegisterRequest",
-	"AuthResponse",
-	"TokenPayload",
-	"TokenResponse",
-	"UserInDB",
-	"UserPublic",
-	"StationCreate",
-	"StationModel",
-	"TrackCreate",
-	"TrackModel",
-	"TrainScheduleCreate",
-	"TrainCreate",
-	"TrainModel",
-	"UserCreate",
-	"to_camel",
+    "LoginRequest",
+    "RegisterRequest",
+    "AuthResponse",
+    "TokenPayload",
+    "TokenResponse",
+    "UserInDB",
+    "UserPublic",
+    "StationCreate",
+    "StationModel",
+    "TrackCreate",
+    "TrackModel",
+    "TrainScheduleCreate",
+    "TrainCreate",
+    "TrainModel",
+    "UserCreate",
+    "to_camel",
 ]

backend/app/models/base.py

@@ -10,6 +10,7 @@ def to_camel(string: str) -> str:
     head, *tail = string.split("_")
     return head + "".join(part.capitalize() for part in tail)
 
+
 IdT = TypeVar("IdT", bound=str)