Update auth, users, settings page, and prisma schema

packages/db/prisma/schema.prisma

@@ -18,10 +18,16 @@ datasource db {
   provider = "postgresql"
 }
 
+enum UserRole {
+  ADMIN
+  USER
+}
+
 model User {
   id                   Int                   @id @default(autoincrement())
   username             String                @unique
   password             String
+  role                 UserRole               @default(USER)
   patients             Patient[]
   appointments         Appointment[]
   staff                Staff[]

packages/db/prisma/seed.ts

@@ -6,11 +6,11 @@ function formatTime(date: Date): string {
 }
 
 async function main() {
-  // Create multiple users
+  // Create multiple users (role: ADMIN | USER)
   const users = await prisma.user.createMany({
     data: [
-      { username: "admin2", password: "123456" },
-      { username: "bob", password: "123456" },
+      { username: "admin2", password: "123456", role: "ADMIN" },
+      { username: "bob", password: "123456", role: "USER" },
     ],
   });