feat: return error not found for stdout repository list

core/activity/errors.go

@@ -6,4 +6,5 @@ var (
 	ErrInvalidUUID   = errors.New("invalid syntax of uuid")
 	ErrInvalidData   = errors.New("invalid log data")
 	ErrInvalidFilter = errors.New("invalid activity filter")
+	ErrNotFound      = errors.New("activities not found")
 )

core/activity/stdout_repository.go

@@ -22,7 +22,6 @@ func (r StdoutRepository) Insert(ctx context.Context, log *audit.Log) error {
 	return json.NewEncoder(r.writer).Encode(log)
 }
 
-// TODO : Fix this
 func (r StdoutRepository) List(ctx context.Context, filter Filter) ([]audit.Log, error) {
-	return []audit.Log{}, nil
+	return []audit.Log{}, ErrNotFound
 }