implementation de nodemailer for email validation

backend/prisma/migrations/20260626114022_add_email_verification/migration.sql

@@ -0,0 +1,4 @@
+-- AlterTable
+ALTER TABLE "User" ADD COLUMN     "emailVerifyExpires" TIMESTAMP(3),
+ADD COLUMN     "emailVerifyToken" TEXT,
+ADD COLUMN     "isEmailVerified" BOOLEAN NOT NULL DEFAULT false;

backend/prisma/migrations/20260626114642_add_reset_password/migration.sql

@@ -0,0 +1,3 @@
+-- AlterTable
+ALTER TABLE "User" ADD COLUMN     "resetPasswordExpires" TIMESTAMP(3),
+ADD COLUMN     "resetPasswordToken" TEXT;

backend/prisma/schema.prisma

@@ -36,6 +36,13 @@ model User {
   marketingOptIn Boolean   @default(false)
   createdAt      DateTime  @default(now())
 
+  isEmailVerified Boolean   @default(false)
+  emailVerifyToken String?
+  emailVerifyExpires DateTime?
+
+  resetPasswordToken String?
+  resetPasswordExpires DateTime?
+
   tickets          Ticket[]
   participations   Participation[]
   grandPrizeWinner GrandPrizeWinner?