Implement auth

I basically copied this article https://fastapi.tiangolo.com/tutorial/security/oauth2-jwt

app/main.py

@@ -1,6 +1,10 @@
 from fastapi import FastAPI
+from fastapi.security import OAuth2PasswordBearer
 from .controllers import userManager, cardManager, groupManager, aaManager
 from .services.database import create_db_and_tables
+from .services.auth import token_router
+
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")
 
 app = FastAPI()
 @app.on_event("startup")
@@ -8,6 +12,8 @@ def on_startup():
     create_db_and_tables()
     print("Database created and tables initialized.")
 
+
+app.include_router(token_router)
 app.include_router(userManager.user_router)
 app.include_router(groupManager.group_router)
 app.include_router(cardManager.card_router)