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>

xiaohongshu/navigate.go

@@ -0,0 +1,25 @@
+package xiaohongshu
+
+import (
+	"context"
+
+	"github.com/go-rod/rod"
+)
+
+type NavigateAction struct {
+	page *rod.Page
+}
+
+func NewNavigate(page *rod.Page) *NavigateAction {
+	return &NavigateAction{page: page}
+}
+
+func (n *NavigateAction) ToExplorePage(ctx context.Context) error {
+	page := n.page.Context(ctx)
+
+	page.MustNavigate("https://www.xiaohongshu.com/explore").
+		MustWaitLoad().
+		MustElement(`div#app`)
+
+	return nil
+}