no-mistakes(document): Fix stale seed.py docstring and remove unused imports across 3 files

app/routers/tickets.py

@@ -11,11 +11,9 @@ from typing import Annotated
 from fastapi import APIRouter, Depends, HTTPException, Query, UploadFile, status
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
-from sqlalchemy.orm import selectinload
-
 from app.core.config import settings
 from app.core.database import get_db
-from app.core.security import get_current_user, require_roles
+from app.core.security import get_current_user
 from app.models.category import Category
 from app.models.ticket import Ticket, TicketPhoto
 from app.models.user import User
@@ -28,7 +26,6 @@ from app.schemas.ticket import (
     TicketListResponse,
     TicketOut,
     TicketPhotoOut,
-    TicketTimelineOut,
     TicketUpdate,
 )
 from app.services import ticket as ticket_service