Update: Logic with Twitch login now works.

main.py

@@ -3,6 +3,7 @@ from fastapi import FastAPI, Request
 from starlette.middleware.sessions import SessionMiddleware
 from starlette.staticfiles import StaticFiles
 from starlette.responses import FileResponse, RedirectResponse
+from contextlib import asynccontextmanager
 
 import models
 from database import engine
@@ -14,12 +15,16 @@ from config import settings # Import settings to get the secret key
 BASE_DIR = os.path.dirname(os.path.abspath(__file__))
 STATIC_DIR = os.path.join(BASE_DIR, "static")
 
-# This line tells SQLAlchemy to create all the tables based on the models
-# we defined. It will create the `multichat_overlay.db` file with the
-# 'users' and 'settings' tables if they don't exist.
-models.Base.metadata.create_all(bind=engine)
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    # This code runs on startup
+    print("Application startup: Creating database tables...")
+    models.Base.metadata.create_all(bind=engine)
+    print("Application startup: Database tables created.")
+    yield
+    # Code below yield runs on shutdown, if needed
 
-app = FastAPI()
+app = FastAPI(lifespan=lifespan)
 
 # Mount the 'static' directory using an absolute path for reliability
 app.mount("/static", StaticFiles(directory=STATIC_DIR), name="static")