✨ Add commands to manage users

store.go

@@ -124,7 +124,7 @@ func (store *DBStore) Close() error {
 	return store.db.Close()
 }
 
-var ErrExists = errors.New("key already exists")
+var ErrUserExists = errors.New("user already exists")
 var ErrUserNotFound = errors.New("user not found")
 var ErrInvalidUsername = errors.New("invalid username")
 
@@ -156,13 +156,13 @@ func (store *DBStore) AddUser(user User) (err error) {
 		if _, exists, err := tx.Set(user.key(), "", nil); err != nil {
 			return err
 		} else if exists {
-			return ErrExists
+			return ErrUserExists
 		}
 
 		if exists, err := store.setUserValues(tx, user); err != nil {
 			return err
 		} else if exists {
-			return ErrExists
+			return ErrUserExists
 		}
 		return nil
 	}); err != nil {