Refactor to use async database model

packages/sshecret-backend/src/sshecret_backend/models.py

@@ -13,6 +13,7 @@ import uuid
 from datetime import datetime
 
 import sqlalchemy as sa
+from sqlalchemy.ext.asyncio import AsyncEngine
 from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column, relationship
 
 
@@ -186,3 +187,9 @@ class AuditLog(Base):
 def init_db(engine: sa.Engine) -> None:
     """Initialize database."""
     Base.metadata.create_all(engine)
+
+
+async def init_db_async(engine: AsyncEngine) -> None:
+    """Initialize database."""
+    async with engine.begin() as conn:
+        await conn.run_sync(Base.metadata.create_all)