[Server] No Ability to set outputSchema

[chr-hertel]

https://modelcontextprotocol.io/specification/2025-06-18/server/tools#data-types
Tools are missing output schema support, which would be a very useful feature.

[bigdevlarry]

Hi, @chr-hertel, can I pick this one up?

[chr-hertel]

Sure @bigdevlarry , go ahead! :)