Add user types

Author: alphacoder-mp3

types/user.ts

@@ -0,0 +1,17 @@
+export interface UserProfile {
+  id: string;
+  name: string;
+  email: string;
+  avatar?: string;
+  bio?: string;
+  role: 'user' | 'admin';
+  preferences: UserPreferences;
+}
+
+export interface UserPreferences {
+  theme: 'light' | 'dark' | 'system';
+  emojiStyle: 'native' | 'twemoji';
+  notifications: boolean;
+}
+
+export type UserUpdatePayload = Partial<Omit<UserProfile, 'id'>>;