package models import ( "time" "github.com/google/uuid" ) type User struct { ID uuid.UUID `json:"id" db:"id"` Username string `json:"username" db:"username"` Email string `json:"email" db:"email"` PasswordHash string `json:"-" db:"password_hash"` // Don't include in JSON Role string `json:"role" db:"role"` CreatedAt time.Time `json:"created_at" db:"created_at"` LastLogin *time.Time `json:"last_login" db:"last_login"` } type UserCredentials struct { Username string `json:"username" binding:"required"` Password string `json:"password" binding:"required"` }