remove phone from user

Backend/prisma/schema.prisma

@@ -32,7 +32,6 @@ model User {
   username          String    @unique @db.VarChar(50)
   email             String    @unique @db.VarChar(255)
   password          String    @db.VarChar(255)
-  phone             String?   @unique @db.VarChar(20)
   role_id           Int
   email_verified_at DateTime?
   created_at        DateTime  @default(now())

Backend/prisma/seed.js

@@ -79,12 +79,12 @@ async function main() {
       password: hashedPassword,
       role_id: roles[0].id,
       email_verified_at: new Date(),
-      phone: '0812345678',
       profile: {
         create: {
           prefix: { th: 'นาย', en: 'Mr.' },
           first_name: 'Admin',
-          last_name: 'User'
+          last_name: 'User',
+          phone: '0812345678'
         }
       }
     }
@@ -99,12 +99,12 @@ async function main() {
       password: hashedPassword,
       role_id: roles[1].id,
       email_verified_at: new Date(),
-      phone: '0812345679',
       profile: {
         create: {
           prefix: { th: 'นาย', en: 'Mr.' },
           first_name: 'John',
-          last_name: 'Doe'
+          last_name: 'Doe',
+          phone: '0812345679'
         }
       }
     }
@@ -119,12 +119,12 @@ async function main() {
       password: hashedPassword,
       role_id: roles[2].id,
       email_verified_at: new Date(),
-      phone: '0812345680',
       profile: {
         create: {
           prefix: { th: 'นางสาว', en: 'Ms.' },
           first_name: 'Jane',
-          last_name: 'Smith'
+          last_name: 'Smith',
+          phone: '0812345680'
         }
       }
     }

Backend/src/services/auth.service.ts

@@ -81,8 +81,8 @@ export class AuthService {
             throw new ValidationError('Email already exists');
         }
 
-        // Check if phone number already exists
-        const existingPhone = await prisma.user.findUnique({
+        // Check if phone number already exists in user profiles
+        const existingPhone = await prisma.userProfile.findFirst({
             where: { phone }
         });