Add Xquik MCP server entry

[kriptoburak]

Summary

• Add Xquik MCP Server to the Tool Protocols and Servers category.
• Edit only entries.yaml, per the contribution guide.

Why it fits

• Xquik exposes a documented Streamable HTTP MCP server for agent workflows.
• The linked repository is MIT licensed and active.
• The docs page and source repository are public.

Validation

• Parsed entries.yaml with Ruby YAML and checked duplicate entry names.
• Diff whitespace check passed.
• Docs and source links returned HTTP 200.
• Duplicate checks found no existing Xquik, x-twitter-scraper, or x-developer entry, PR, or issue in this repo.
• Public diff scan found no secrets or private implementation details.

[kriptoburak]

If this is useful and you merge it after checks pass, feel free to share the PR on X/Twitter and mention my handle, burakbayir. I can repost or retweet it to my 24k followers of developers and power users, which may help more relevant users discover this repo.