Continued migrating more and more files

src/pages/api/grading/index.ts

@@ -1,7 +1,6 @@
 // Next.js API route support: https://nextjs.org/docs/api-routes/introduction
 import type {NextApiRequest, NextApiResponse} from "next";
 import {app} from "@/firebase";
-import {getFirestore, collection, getDocs, setDoc, doc, getDoc, deleteDoc, query} from "firebase/firestore";
 import {withIronSessionApiRoute} from "iron-session/next";
 import {sessionOptions} from "@/lib/session";
 import {CorporateUser, Group} from "@/interfaces/user";