优化结构

internal/data/repository/log_file_test.go

@@ -3,11 +3,11 @@ package system
 import (
 	"context"
 	"errors"
+	"kra/internal/biz/system"
 	"os"
 	"path/filepath"
 	"testing"
 
-	"kra/internal/biz"
 	"kra/internal/conf"
 )
 
@@ -44,7 +44,7 @@ func TestLogViewerRejectsPathTraversal(t *testing.T) {
 	runtime := conf.NewRuntime(nil, &conf.AdminBackend{Zap: &conf.AdminBackend_Zap{Director: t.TempDir()}})
 	repo := &logFileRepo{data: &Data{runtime: runtime}}
 	_, err := repo.LogContent(context.Background(), "2026-08-16", "../application.log", nil)
-	if !errors.Is(err, biz.ErrInvalidLogPath) {
+	if !errors.Is(err, system.ErrInvalidLogPath) {
 		t.Fatalf("expected invalid path error, got %v", err)
 	}
 }