feat: github auth

prisma/migrations/20241213233617_github_init/migration.sql

@@ -0,0 +1,17 @@
+/*
+  Warnings:
+
+  - You are about to drop the column `hashed_password` on the `User` table. All the data in the column will be lost.
+  - A unique constraint covering the columns `[githubId]` on the table `User` will be added. If there are existing duplicate values, this will fail.
+  - Added the required column `githubId` to the `User` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- DropIndex
+DROP INDEX "User_username_key";
+
+-- AlterTable
+ALTER TABLE "User" DROP COLUMN "hashed_password",
+ADD COLUMN     "githubId" TEXT NOT NULL;
+
+-- CreateIndex
+CREATE UNIQUE INDEX "User_githubId_key" ON "User"("githubId");

prisma/schema.prisma

@@ -15,8 +15,8 @@ datasource db {
 
 model User {
   id       String    @id @default(cuid())
-  username String @unique
-  hashed_password String
+  githubId String    @unique
+  username String
   sessions Session[]
 }