chore(): switched all fields in contract to snake_case and linting improvements

src/backend/api/v1/users/schemas.py

@@ -7,8 +7,7 @@ from apps.users.models import User
 
 
 class UserOut(ModelSchema):
-    first_name: str = Field("", alias="firstName")
-    last_name: str = Field("", alias="lastName")
+
     is_active: bool
 
     class Meta:
@@ -52,13 +51,11 @@ class UserCreateIn(Schema):
     )
     first_name: str = Field(
         "",
-        alias="firstName",
         max_length=150,
         description="First name.",
     )
     last_name: str = Field(
         "",
-        alias="lastName",
         max_length=150,
         description="Last name.",
     )
@@ -91,19 +88,16 @@ class UserUpdateIn(Schema):
     )
     first_name: str | None = Field(
         None,
-        alias="firstName",
         max_length=150,
         description="New first name.",
     )
     last_name: str | None = Field(
         None,
-        alias="lastName",
         max_length=150,
         description="New last name.",
     )
     is_active: bool | None = Field(
         None,
-        alias="isActive",
         description="Set active/inactive status.",
     )