Implement remote MCP server deployment capabilities

- Add HTTP/JSON-RPC server for remote MCP access
- Configure domain and authentication via environment variables
- Create comprehensive remote deployment documentation
- Support both local (stdio) and remote (HTTP) deployment modes
- Add PM2 and Nginx configuration examples
- Update README with remote server instructions

The server can now be deployed on a VM (e.g., Hetzner) and accessed
from Claude Desktop over HTTPS using the configured domain.

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

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

.env.example

@@ -1,22 +1,32 @@
-# n8n Configuration
-N8N_BASIC_AUTH_USER=admin
-N8N_BASIC_AUTH_PASSWORD=your-secure-password-here
-N8N_HOST=localhost
-N8N_API_KEY=your-api-key-here
+# n8n Documentation MCP Remote Server Configuration
 
-# MCP Configuration
-MCP_LOG_LEVEL=info
-NODE_ENV=production
+# Remote Server Configuration
+MCP_PORT=3000
+MCP_HOST=0.0.0.0
+MCP_DOMAIN=n8ndocumentation.aiservices.pl
+
+# Authentication (REQUIRED for production)
+# Generate a secure token: openssl rand -hex 32
+MCP_AUTH_TOKEN=your-secure-auth-token-here
+
+# CORS - Enable for browser-based access
+MCP_CORS=true
+
+# TLS Configuration (optional but recommended for production)
+# MCP_TLS_CERT=/path/to/cert.pem
+# MCP_TLS_KEY=/path/to/key.pem
 
 # Database Configuration
-NODE_DB_PATH=/app/data/nodes.db
+NODE_DB_PATH=/app/data/nodes-v2.db
 
-# Optional: External n8n instance
-# N8N_API_URL=http://your-n8n-instance:5678
+# Node.js Environment
+NODE_ENV=production
 
-# MCP Server Configuration (if using HTTP transport)
-# MCP_SERVER_PORT=3000
-# MCP_SERVER_HOST=localhost
+# Logging
+MCP_LOG_LEVEL=info
 
-# Authentication
-# MCP_AUTH_TOKEN=your-secure-token
+# Legacy n8n Configuration (not used in v2)
+# N8N_BASIC_AUTH_USER=admin
+# N8N_BASIC_AUTH_PASSWORD=your-secure-password-here
+# N8N_HOST=localhost
+# N8N_API_KEY=your-api-key-here