Add QVeris remote MCP server

[FairyZhang-sunny]

Summary

• Add the official hosted QVeris MCP server.
• Document Bearer API-key authentication as a required secret header.
• Include the live tool list and official QVeris icon.

Validation

• go run ./cmd/catalog validate -v
• go run ./cmd/catalog build -v
• Live initialize handshake negotiated MCP 2025-06-18.
• Live tools/list returned the eight declared tools.
• npm audit --omit=dev --audit-level=high reported 0 vulnerabilities for @qverisai/mcp.

Closes #1546

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
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Additional details and impacted files

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  Files           ?       18           
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  Hits            ?      765           
  Misses          ?      572           
  Partials        ?       87           

Flag	Coverage Δ
unittests	53.72% <ø> (?)

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