llm_install fine-tuning for one shot install via AI Agent

[Arenukvern]

With new simplified setup now it is possible to ask AI Agent to install this MCP server in one shot:

Please install MCP server using this link: https://github.com/Arenukvern/mcp_flutter/blob/main/llm_install.md

However, this setup is made only for Cursor, Cline and Claude and maybe not suitable for other IDE.

Also it may incorrectly write config for mcp servers..

So, there is definitely a room for improvement:)