add vercel json and change to mysql

packages/database/schema.prisma

@@ -4,7 +4,7 @@ generator client {
 }
 
 datasource db {
-  provider = "postgresql"
+  provider = "mysql"
   url      = env("DATABASE_URL")
 }
 
@@ -14,14 +14,14 @@ enum Role {
 }
 
 model User {
-  id        String  @id @default(dbgenerated("gen_random_uuid()")) @db.Uuid
+  id        String  @id @default(uuid())
   email     String  @unique
   password  String
   firstName String
   lastName  String
   role      Role    @default(USER)
   avatar    String?
 
-  createdAt DateTime @default(now()) @db.Timestamptz(6)
-  updatedAt DateTime @default(now()) @updatedAt @db.Timestamptz(6)
+  createdAt DateTime @default(now())
+  updatedAt DateTime @default(now()) @updatedAt
 }

vercel.json

@@ -0,0 +1,5 @@
+{
+  "$schema": "https://openapi.vercel.sh/vercel.json",
+  "github": { "silent": true },
+  "installCommand": "pnpm --filter !app install"
+}