feat: implement xiaohongshu automation with MCP server

Complete implementation of xiaohongshu (Little Red Book) automation system:

### Core Features:
- **QR Code Login**: Automated login with cookie persistence
- **Content Publishing**: Post text, images with AI-powered descriptions
- **Browser Management**: Headless Chrome automation via go-rod
- **Cookie Persistence**: Session management for login state
- **MCP Server**: Model Context Protocol integration for Claude

### Technical Components:
- go-rod browser automation with stealth mode
- MCP server for Claude Code integration
- Cookie-based session management
- Robust error handling and logging
- Cross-platform compatibility

### API Endpoints:
- Login status checking and QR code authentication
- Content publishing with image upload support
- Navigation and page interaction utilities

This provides a complete foundation for xiaohongshu automation
with proper session management and MCP integration.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

service.go

@@ -0,0 +1,103 @@
+package main
+
+import (
+	"context"
+	"errors"
+
+	"github.com/xpzouying/xiaohongshu-mcp/browser"
+	"github.com/xpzouying/xiaohongshu-mcp/configs"
+	"github.com/xpzouying/xiaohongshu-mcp/xiaohongshu"
+)
+
+// XiaohongshuService 小红书业务服务
+type XiaohongshuService struct{}
+
+// NewXiaohongshuService 创建小红书服务实例
+func NewXiaohongshuService() *XiaohongshuService {
+	return &XiaohongshuService{}
+}
+
+// PublishRequest 发布请求
+type PublishRequest struct {
+	Title      string   `json:"title" binding:"required"`
+	Content    string   `json:"content" binding:"required"`
+	ImagePaths []string `json:"image_paths" binding:"required,min=1"`
+}
+
+// LoginStatusResponse 登录状态响应
+type LoginStatusResponse struct {
+	IsLoggedIn bool   `json:"is_logged_in"`
+	Username   string `json:"username,omitempty"`
+}
+
+// PublishResponse 发布响应
+type PublishResponse struct {
+	Title   string `json:"title"`
+	Content string `json:"content"`
+	Images  int    `json:"images"`
+	Status  string `json:"status"`
+	PostID  string `json:"post_id,omitempty"`
+}
+
+// CheckLoginStatus 检查登录状态
+func (s *XiaohongshuService) CheckLoginStatus(ctx context.Context) (*LoginStatusResponse, error) {
+	// 使用全局单例浏览器创建新页面
+	page := browser.NewPage()
+	defer page.Close()
+	loginAction := xiaohongshu.NewLogin(page)
+
+	isLoggedIn, err := loginAction.CheckLoginStatus(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	response := &LoginStatusResponse{
+		IsLoggedIn: isLoggedIn,
+		Username:   configs.Username,
+	}
+
+	return response, nil
+}
+
+// PublishContent 发布内容
+func (s *XiaohongshuService) PublishContent(ctx context.Context, req *PublishRequest) (*PublishResponse, error) {
+	// 验证参数
+	if req.Title == "" {
+		return nil, errors.New("标题不能为空")
+	}
+	if req.Content == "" {
+		return nil, errors.New("内容不能为空")
+	}
+	if len(req.ImagePaths) == 0 {
+		return nil, errors.New("至少需要一个图片ID")
+	}
+
+	// 构建发布内容
+	content := xiaohongshu.PublishImageContent{
+		Title:      req.Title,
+		Content:    req.Content,
+		ImagePaths: req.ImagePaths,
+	}
+
+	// 使用全局单例浏览器创建新页面
+	page := browser.NewPage()
+	defer page.Close()
+	action, err := xiaohongshu.NewPublishImageAction(page)
+	if err != nil {
+		return nil, err
+	}
+
+	// 执行发布
+	if err := action.Publish(ctx, content); err != nil {
+		return nil, err
+	}
+
+	response := &PublishResponse{
+		Title:   req.Title,
+		Content: req.Content,
+		Images:  len(req.ImagePaths),
+		Status:  "发布完成",
+	}
+
+	return response, nil
+}