feat: Tag管理功能 + 打包脚本优化 + CI/CD发布流水线

- 新增标签管理: 列表/创建/删除/推送标签 (后端API + 前端UI)
- 前端新增标签Tab页，支持创建、删除、推送操作
- config.go 改为从可执行文件同目录加载 config.yaml
- 各平台构建脚本自动复制 config.yaml 到输出目录
- Windows 打包改为 ZIP 格式 (不依赖 NSIS)
- 新增 GitHub Actions Release 工作流 (三平台自动构建+发布)

internal/app/service.go

@@ -701,3 +701,97 @@ func (s *AppService) SwitchBranch(path, branch string) error {
 	_, err := s.gitClient.Checkout(path, strings.TrimSpace(branch))
 	return err
 }
+
+// TagInfo 标签信息
+type TagInfo struct {
+	Name      string `json:"name"`
+	Hash      string `json:"hash"`
+	Timestamp int64  `json:"timestamp"`
+	Message   string `json:"message"`
+}
+
+// GetTags 获取所有标签
+func (s *AppService) GetTags(path string) ([]TagInfo, error) {
+	if _, err := os.Stat(path); os.IsNotExist(err) {
+		return nil, fmt.Errorf("项目路径不存在: %s", path)
+	}
+	out, err := s.gitClient.TagList(path)
+	if err != nil {
+		return nil, fmt.Errorf("获取标签列表失败: %w", err)
+	}
+	var tags []TagInfo
+	for _, line := range strings.Split(strings.TrimSpace(out), "\n") {
+		if strings.TrimSpace(line) == "" {
+			continue
+		}
+		parts := strings.SplitN(line, "\t", 5)
+		if len(parts) < 3 {
+			continue
+		}
+		var ts int64
+		fmt.Sscanf(parts[2], "%d", &ts)
+		hash := parts[1]
+		// 注释标签的实际提交哈希在 *objectname
+		if len(parts) > 3 && parts[3] != "" {
+			hash = parts[3]
+		}
+		message := ""
+		if len(parts) > 4 {
+			message = parts[4]
+		}
+		tags = append(tags, TagInfo{
+			Name:      parts[0],
+			Hash:      hash,
+			Timestamp: ts,
+			Message:   message,
+		})
+	}
+	return tags, nil
+}
+
+// CreateTag 创建标签
+func (s *AppService) CreateTag(path, name, message string) error {
+	if _, err := os.Stat(path); os.IsNotExist(err) {
+		return fmt.Errorf("项目路径不存在: %s", path)
+	}
+	name = strings.TrimSpace(name)
+	if name == "" {
+		return fmt.Errorf("标签名不能为空")
+	}
+	if strings.TrimSpace(message) == "" {
+		message = name
+	}
+	_, err := s.gitClient.CreateTag(path, name, message)
+	return err
+}
+
+// DeleteTag 删除标签（本地+远程）
+func (s *AppService) DeleteTag(path, name string) error {
+	if _, err := os.Stat(path); os.IsNotExist(err) {
+		return fmt.Errorf("项目路径不存在: %s", path)
+	}
+	name = strings.TrimSpace(name)
+	if name == "" {
+		return fmt.Errorf("标签名不能为空")
+	}
+	// 删除本地标签
+	if _, err := s.gitClient.DeleteTag(path, name); err != nil {
+		return fmt.Errorf("删除本地标签失败: %w", err)
+	}
+	// 尝试删除远程标签（忽略错误，可能未推送过）
+	s.gitClient.DeleteRemoteTag(path, name)
+	return nil
+}
+
+// PushTag 推送标签到远程
+func (s *AppService) PushTag(path, name string) error {
+	if _, err := os.Stat(path); os.IsNotExist(err) {
+		return fmt.Errorf("项目路径不存在: %s", path)
+	}
+	name = strings.TrimSpace(name)
+	if name == "" {
+		return fmt.Errorf("标签名不能为空")
+	}
+	_, err := s.gitClient.PushTag(path, name)
+	return err
+}

internal/git/client.go

@@ -129,6 +129,32 @@ func (g *GitClient) RevertCommit(path, hash string) (string, error) {
 	return g.Run(path, "revert", "--no-edit", hash)
 }
 
+// TagList 获取所有标签（按版本号降序，带创建时间和提交哈希）
+func (g *GitClient) TagList(path string) (string, error) {
+	return g.Run(path, "tag", "-l", "--sort=-version:refname",
+		"--format=%(refname:short)\t%(objectname:short)\t%(creatordate:unix)\t%(*objectname:short)\t%(contents:subject)")
+}
+
+// CreateTag 创建注释标签
+func (g *GitClient) CreateTag(path, name, message string) (string, error) {
+	return g.Run(path, "tag", "-a", name, "-m", message)
+}
+
+// DeleteTag 删除本地标签
+func (g *GitClient) DeleteTag(path, name string) (string, error) {
+	return g.Run(path, "tag", "-d", name)
+}
+
+// PushTag 推送标签到远程
+func (g *GitClient) PushTag(path, name string) (string, error) {
+	return g.Run(path, "push", "origin", name)
+}
+
+// DeleteRemoteTag 删除远程标签
+func (g *GitClient) DeleteRemoteTag(path, name string) (string, error) {
+	return g.Run(path, "push", "origin", "--delete", name)
+}
+
 // BranchList 获取所有本地分支
 func (g *GitClient) BranchList(path string) (string, error) {
 	return g.Run(path, "branch", "--format=%(refname:short)\t%(HEAD)")