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>

server.go

@@ -0,0 +1,86 @@
+package main
+
+import (
+	"context"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/sirupsen/logrus"
+)
+
+// setupRouter 设置路由
+func setupRouter() *gin.Engine {
+	// 设置 Gin 模式
+	gin.SetMode(gin.ReleaseMode)
+
+	router := gin.New()
+
+	router.Use(gin.Logger())
+	router.Use(gin.Recovery())
+
+	// 添加中间件
+	router.Use(errorHandlingMiddleware())
+	router.Use(corsMiddleware())
+
+	// 健康检查
+	router.GET("/health", healthHandler)
+
+	// MCP 端点 - 使用 SSE 协议
+	mcpHandler := createMCPHandler()
+	router.Any("/mcp", gin.WrapH(mcpHandler))
+	router.Any("/mcp/*path", gin.WrapH(mcpHandler))
+
+	// API 路由组
+	api := router.Group("/api/v1")
+	{
+		api.GET("/login/status", checkLoginStatusHandler)
+
+		api.POST("/publish", publishHandler)
+	}
+
+	return router
+}
+
+// startServer 启动服务器
+func startServer() error {
+	router := setupRouter()
+
+	port := ":18060"
+	server := &http.Server{
+		Addr:    port,
+		Handler: router,
+	}
+
+	// 启动服务器的 goroutine
+	go func() {
+		logrus.Infof("启动 HTTP 服务器: %s", port)
+		if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+			logrus.Errorf("服务器启动失败: %v", err)
+			os.Exit(1)
+		}
+	}()
+
+	// 等待中断信号
+	quit := make(chan os.Signal, 1)
+	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
+	<-quit
+
+	logrus.Infof("正在关闭服务器...")
+
+	// 优雅关闭
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	// 关闭 HTTP 服务器
+	if err := server.Shutdown(ctx); err != nil {
+		logrus.Errorf("服务器关闭失败: %v", err)
+		return err
+	}
+
+	logrus.Infof("服务器已关闭")
+	return nil
+}