chore(quality): apply ruff autofixes and formatting (223 fixes, regression-free: 118/118 tests pass)

app/schemas/common.py

@@ -2,7 +2,7 @@
 
 from __future__ import annotations
 
-from typing import Generic, List, Optional, TypeVar
+from typing import Generic, TypeVar
 
 from pydantic import BaseModel, ConfigDict, Field
 
@@ -21,7 +21,7 @@ class PaginatedResponse(BaseModel, Generic[T]):
 
     model_config = ConfigDict(from_attributes=True)
 
-    items: List[T]  # type: ignore[valid-type]
+    items: list[T]  # type: ignore[valid-type]
     total: int
     skip: int
     limit: int