Draft changelog: hosted MCP servers for X API and docs

[mintlify]

Summary

Adds a Jun 30, 2026 changelog entry announcing the hosted X MCP and Docs MCP servers, with translations in es/ja/ko/pt.

Changes

• New feature entry covering https://api.x.com/mcp (X MCP via xurl mcp bridge) and https://docs.x.com/mcp (Docs MCP)
• Links to the MCP setup guide for client configs and troubleshooting
• Mirrored entry added to Spanish, Japanese, Korean, and Portuguese changelogs

Context

Triggered by the most recent merge to main updating tools/mcp.mdx, which documents the two hosted MCP endpoints now available to AI tools.

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Project	Status	Preview	Updated (UTC)
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