add auth token cleanup logic

packages/server/src/auth/auth.ts

@@ -119,6 +119,13 @@ async function verifyAuthToken(cookies: Bun.CookieMap): Promise<User | null> {
 	return user
 }
 
+function startBackgroundAuthTokenCleanup() {
+	const query = db.query("DELETE FROM auth_tokens WHERE expires_at_unix_ms < $time")
+	setInterval(() => {
+		query.run({ time: new Date().valueOf() })
+	}, 5000)
+}
+
 async function signUp(request: Bun.BunRequest<"/api/sign-up">) {
 	const body = await request.json().catch(() => {
 		throw new HttpError(500)
@@ -199,4 +206,4 @@ async function logout(request: Bun.BunRequest<"/api/logout">, user: User): Promi
 	return new Response(undefined, { status: 204 })
 }
 
-export { authenticated, signUp, login, logout }
+export { authenticated, signUp, login, logout, startBackgroundAuthTokenCleanup }