auth in backend and frontend

packages/database/prisma/migrations/20250324002818_add_session_user_relation/migration.sql

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+-- CreateTable
+CREATE TABLE "users" (
+    "id" TEXT NOT NULL,
+    "email" TEXT NOT NULL,
+    "password" TEXT NOT NULL,
+    "name" TEXT,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "users_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "sessions" (
+    "id" TEXT NOT NULL,
+    "userId" TEXT NOT NULL,
+    "token" TEXT NOT NULL,
+    "expiresAt" TIMESTAMP(3) NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "sessions_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "users_email_key" ON "users"("email");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "sessions_token_key" ON "sessions"("token");
+
+-- AddForeignKey
+ALTER TABLE "sessions" ADD CONSTRAINT "sessions_userId_fkey" FOREIGN KEY ("userId") REFERENCES "users"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

packages/database/prisma/migrations/migration_lock.toml

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+# Please do not edit this file manually
+# It should be added in your version-control system (i.e. Git)
+provider = "postgresql"

packages/database/prisma/schema.prisma

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+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider = "postgresql"
+  url      = env("DATABASE_URL")
+}
+
+model User {
+  id        String    @id @default(cuid())
+  email     String    @unique
+  password  String
+  name      String?
+  createdAt DateTime  @default(now())
+  updatedAt DateTime  @updatedAt
+  sessions  Session[]
+
+  @@map("users")
+}
+
+model Session {
+  id        String   @id @default(cuid())
+  userId    String
+  token     String   @unique
+  expiresAt DateTime
+  createdAt DateTime @default(now())
+  user      User     @relation(fields: [userId], references: [id])
+
+  @@map("sessions")
+}