feat(api): add isLoggedIn utility function

for api routes which require authentication

lib/server/middlewareButNotReally/isLoggedIn.ts

@@ -0,0 +1,9 @@
+import { H3Event, EventHandlerRequest } from "h3";
+export default function (ev: H3Event<EventHandlerRequest>) {
+	if (!ev.context.currentUser) {
+		throw createError({
+			statusCode: 401,
+			statusMessage: "Authentication required",
+		});
+	}
+}