add limited db support in regards to the remember me button

database.py

@@ -0,0 +1,27 @@
+from sqlalchemy import create_engine, Column, String, Integer, Boolean, DateTime, ForeignKey, Text
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+from config import settings
+import uuid
+
+Base = declarative_base()
+
+class User(Base):
+    __tablename__ = "users"
+    id = Column(Integer, primary_key=True, index=True)
+    username = Column(String(16), unique=True, index=True, nullable=False)
+    local_hash = Column(Text, nullable=False)
+    spfn_pass_enc = Column(Text, nullable=False)
+
+class Session(Base):
+    __tablename__ = "sessions"
+    id = Column(String, primary_key=True, default=lambda: str(uuid.uuid4()))
+    username = Column(String(16), ForeignKey("users.username"), nullable=False)
+    expires_at = Column(DateTime, nullable=True)
+    remember_me = Column(Boolean, default=False)
+
+engine = create_engine(settings.db_url)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+def init_db():
+    Base.metadata.create_all(bind=engine)