Add profile and login screen + first api logic draft

types/types.ts

@@ -1,9 +1,11 @@
 // --- TYPES & export INTERFACES (File: types.ts) ---
-// In un progetto reale, metti queste interfacce in un file separato 'types.ts'
 
 export interface UserData {
   name: string;
-  role: string;
+  surname: string;
+  username: string;
+  role?: string;
+  email?: string;
   id: string;
 }