feat: users table and welcome videonote

db/models/users.py

@@ -0,0 +1,10 @@
+from sqlalchemy import BIGINT
+from sqlalchemy.orm import Mapped, mapped_column
+
+from db.base import Base
+
+
+class User(Base):
+    __tablename__ = "users"
+
+    id: Mapped[int] = mapped_column(BIGINT, unique=True, nullable=False, primary_key=True)