Deploy as a streaming http server

Using streaming http over stdio has advantages such as being usable within claude.ai, chatgpt etc as connectors.

Ultimately we should do this as a standard NMDC service using normal nmdc urls, ending in `/mcp`

As a stopgap, @sujaypatil96 has deployed on fastmcp.cloud

```
    "nmdc": {
      "type": "http",
      "url": "https://nmdc-mcp.fastmcp.app/mcp"
    },
```