Init project structure

app/models/base.py

@@ -0,0 +1,10 @@
+"""Declarative base for SQLAlchemy models."""
+from sqlalchemy.orm import DeclarativeBase, declared_attr
+
+
+class Base(DeclarativeBase):
+    """Base class that configures naming conventions."""
+
+    @declared_attr.directive
+    def __tablename__(cls) -> str:  # type: ignore[misc]
+        return cls.__name__.lower()