Initial commit: n8n MCP server for VS Code integration

- Implemented MCP server with 8 n8n tools
- Added n8n API client for workflow operations
- Configured VS Code settings with API authentication
- Added comprehensive documentation and setup guides
- Tested and verified connection to n8n instance

.env.example

@@ -0,0 +1,8 @@
+# Example .env file for n8n MCP server
+# Copy this to .env and fill in your values
+
+# n8n instance URL (default: http://srvdocker02:8098)
+N8N_BASE_URL=http://srvdocker02:8098
+
+# n8n API key (optional, required for authenticated instances)
+# N8N_API_KEY=your-api-key-here