STABLE: Final schema sync, optimized gitignore

backend/app/database.py

@@ -1,11 +1,24 @@
+# /opt/docker/dev/service_finder/backend/app/database.py
 from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker
 from sqlalchemy.orm import DeclarativeBase
+from app.core.config import settings
 
-# A .env fájlból olvassuk majd, de teszthez:
-DATABASE_URL = "postgresql+asyncpg://user:password@db_container_name:5432/db_name"
+# Most már settings.SQLALCHEMY_DATABASE_URI létezik a property miatt!
+engine = create_async_engine(
+    str(settings.SQLALCHEMY_DATABASE_URI),
+    echo=settings.DEBUG_MODE, 
+    pool_size=20,
+    max_overflow=10,
+    pool_pre_ping=True,
+)
 
-engine = create_async_engine(DATABASE_URL, echo=True)
-SessionLocal = async_sessionmaker(autocommit=False, autoflush=False, bind=engine, class_=AsyncSession)
+AsyncSessionLocal = async_sessionmaker(
+    autocommit=False,
+    autoflush=False,
+    bind=engine,
+    class_=AsyncSession,
+    expire_on_commit=False
+)
 
 class Base(DeclarativeBase):
     pass