no-mistakes(review): Add pytest-asyncio dev dep and deterministic pagination tiebreaker

app/services/ticket.py

@@ -196,7 +196,7 @@ async def list_tickets(
 
     # Paginate
     offset = (page - 1) * page_size
-    query = query.order_by(Ticket.created_at.desc()).offset(offset).limit(page_size).options(selectinload(Ticket.assigned_technician))
+    query = query.order_by(Ticket.created_at.desc(), Ticket.id.desc()).offset(offset).limit(page_size).options(selectinload(Ticket.assigned_technician))
 
     result = await db.execute(query)
     tickets = list(result.scalars().all())

pyproject.toml

@@ -29,5 +29,6 @@ testpaths = ["tests"]
 [project.optional-dependencies]
 dev = [
     "pytest>=8.0",
+    "pytest-asyncio>=0.24",
     "httpx>=0.27.0",
 ]