Add ESP RainMaker MCP Server

[shahpiyushv]

Official Espressif MCP Server to control and manage ESP RainMaker devices

Description

This MCP Server can be used to manage and control ESP RainMaker devices.

Server Details

• Server: https://github.com/espressif/esp-rainmaker-mcp

Motivation and Context

This adds a pointer for the official ESP RainMaker MCP Server

How Has This Been Tested?

Added to Claude Desktop, Gemini CLI, Cursor and Windsurf as per instructions in the MCP Server's README and tested all the tools

Breaking Changes

N/A

Types of changes

• Documentation update

Checklist

• I have read the MCP Protocol Documentation
• My changes follows MCP security best practices
• I have updated the server's README accordingly
• I have tested this with an LLM client
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have documented all environment variables and configuration options

[olaservo]

Thanks for your contribution to the servers list. This has been merged in this combined PR: #2477

This is a new process we're trying out, so if you see any issues feel free to re-open the PR and tag me.