feat: added seseion for sqlite, alembic and ruff, model Timerr, schemas.py, mixin for id, cruds: create timer, get timer, settings.py for db

kawai_focus/database/session.py

@@ -0,0 +1,28 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, Session
+
+from kawai_focus.settings import settings
+    
+
+class SessionDB:  
+    """Класс для управления подключением к базе данных."""
+    
+    def __init__(self) -> None:  
+        self._engine = create_engine(
+            url=settings.db_settings.get_url_db, 
+            echo=settings.db_settings.echo_db
+        )  
+        self._session_factory = sessionmaker(
+            bind=self._engine, 
+            expire_on_commit=False, 
+            autocommit=False
+        )  
+
+    @property  
+    def get_session(self) -> Session:  
+        """Метод для получения сессии"""
+
+        return self._session_factory
+
+
+db = SessionDB()