feat(account): #49 refactor error handling

db/account.go

@@ -1,6 +1,7 @@
 package db
 
 import (
+	"database/sql"
 	"spend-sparrow/log"
 	"spend-sparrow/types"
 
@@ -100,6 +101,9 @@ func (db AccountSqlite) Get(userId uuid.UUID, id uuid.UUID) (*types.Account, err
 			WHERE user_id = ? 
 				AND id = ?`, userId, id)
 	if err != nil {
+		if err == sql.ErrNoRows {
+			return nil, ErrNotFound
+		}
 		log.Error("account Get: %v", err)
 		return nil, types.ErrInternal
 	}