Include cluster size in the response of atlas-inspect-cluster

[nirinchev]

No description provided.

[blva]

@nirinchev cluster size is quite loaded and depends on the cluster configuration specially after we created asymmetric clusters, e.g. here's our API response https://www.mongodb.com/docs/atlas/reference/api-resources-spec/v2/#tag/Clusters/operation/getCluster

I'd suggest we close this as not planned for now.

[nirinchev]

This was moved over from https://docs.google.com/document/d/1bZdUkNWjKWynMR2VuCIoE3Hes_-JiJ7QGZEJp70XSN0/edit?tab=t.0#heading=h.lxodmx4uqcj4 and @nlarew. If it'd be hard to do, I don't mind closing, but at the same time, it doesn't seem far-fetched of a question, that users might expect the MCP server to answer.