Write a few SQLModels;

set up two basic CRUD-like functions;
create two test routes;
make `db_uri` setting more flexible

requirements/common.txt

@@ -1,7 +1,8 @@
 Pydantic
 FastAPI
-SQLAlchemy[asyncio]
+SQLAlchemy[asyncio]==1.4.35
 Alembic
 SQLAlchemy-Utils
+SQLModel
 Babel
-python-slugify
+Python-Slugify