feat: 添加同步进度显示和中文界面支持

refactor: 重构同步引擎以支持进度跟踪
style: 更新前端界面为中文
docs: 更新README为中文文档

internal/database/database_test.go

@@ -2,12 +2,13 @@ package database
 
 import (
 	"os"
+	"path/filepath"
 	"testing"
 	"gitm/internal/models"
 )
 
 func TestDatabase(t *testing.T) {
-	tmpDB := "/tmp/test_gitm.db"
+	tmpDB := filepath.Join(os.TempDir(), "test_gitm.db")
 	defer os.Remove(tmpDB)
 
 	if err := Initialize(tmpDB); err != nil {