feat: явно указаны зависимости к Protocol для перехода к имплементации

src/adapter/postgres.py

@@ -8,11 +8,12 @@ from tortoise.transactions import in_transaction
 
 from shared.datebase_base import DatabaseBase
 from src import domain
+from usecase import Database
 
 log = logging.getLogger(__name__)
 
 
-class Postgres(DatabaseBase):
+class Postgres(DatabaseBase, Database):
     def transaction(self) -> typing.AsyncContextManager[None]:
         return in_transaction()