[TECH-9] MCP reference in Section 9.7 is too vague

[PieterKas]

Source: email from Yaron Sheffer to the WIMSE mailing list, Review of draft-klrc-aiagent-auth (editor's copy). Quoted verbatim below.

The reference to MCP's user-solicitation pattern should point to a specific section or feature of the MCP specification rather than the top-level spec URL.

[PieterKas]

cc @yaronf