Update MCP docs

[digitarald]

• MCP GA and new GH org policy for enterprise/business
• Elicitations
• New install and management UI (Test Managing MCP Servers vscode#253093)
• FAQ for "You may not include more than 128 tools in your request" (frequent problem)

cc @sandy081

[ntrogh]

GH org policy for enterprise/business

@digitarald added this (vnext): d78150a#diff-e5a23afde705e74c5b7fe4ee734bbf436eaadb02b27cdc4158f6b909bc6ce2e6

[sandy081]

@digitarald / @ntrogh MCP docs in vNext are still having old content. Are you planning to update them?

[ntrogh]

@sandy081 did you check the website or the repo? The docs should be updated.

[sandy081]

This is the file I checked and it still has old content -

vscode-docs/api/extension-guides/ai/mcp.md

Line 1 in 70779c0

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[ntrogh]

Will check later today

[digitarald]

Also did a pass. All closed now.