[Server] Implement OAuth Flow for Client Authentication

[chr-hertel]

Referring to this part of the spec:
https://modelcontextprotocol.io/specification/2025-11-25/basic/authorization

[bigdevlarry]

Hi @chr-hertel, how should we define the scope of work for this? Should this remain as a single issue, or would it make sense to create sub-issues to clarify what needs to be done per implementation? Just trying to understand how best to contribute here.

[chr-hertel]

Hi @bigdevlarry, I referenced the open PR #221 with this - you could contribute to that PR by giving it a review, trying the examples & give feedback :)