Initial commit - Migrated to Dev environment

backend/app/db/base.py

@@ -0,0 +1,10 @@
+from sqlalchemy.ext.asyncio import AsyncAttrs
+from sqlalchemy.orm import DeclarativeBase
+
+
+class Base(AsyncAttrs, DeclarativeBase):
+    """
+    Base class for all SQLAlchemy models.
+    Includes AsyncAttrs to support async attribute access (lazy loading).
+    """
+    pass