Python examples for Tool / Resource / Prompt concept pages should use FastMCP

[lherron]

The server quickstart uses FastMCP:

https://modelcontextprotocol.io/quickstart/server

The concept page examples use mcp.server:

https://modelcontextprotocol.io/docs/concepts/tools
https://modelcontextprotocol.io/docs/concepts/resources
https://modelcontextprotocol.io/docs/concepts/prompts

This is very confusing, as I bounced from quickstart into those concept pages. I tried to add @list_prompts() and @get_prompt() decorators to my FastMCP server I created in the quickstart, when I should have been adding @prompt() instead.

The issue is exacerbated by FastMCP having almost the same API interface as mcp.server, so the errors I was getting were async related and I had to look into the FastMCP source to understand what was going on.