Implement authentication

prisma/migrations/20241120032217_sessions_2/migration.sql

@@ -0,0 +1,10 @@
+/*
+  Warnings:
+
+  - You are about to drop the column `username` on the `Session` table. All the data in the column will be lost.
+  - Added the required column `userId` to the `Session` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- AlterTable
+ALTER TABLE `Session` DROP COLUMN `username`,
+    ADD COLUMN `userId` VARCHAR(255) NOT NULL;