Onboarding request: io.github.vj88-coder/pairbook-mcp for github.com/mcp #3176

Requesting onboarding of PairBook to the GitHub MCP Registry and the VS Code MCP gallery.

• Registry name: io.github.vj88-coder/pairbook-mcp (published and active on the official MCP registry, currently v1.2.1 metadata with npm package pairbook-mcp)
• Repository: https://github.com/vj88-coder/pairbook-mcp (MIT, CI on Node 18/20/22, 19 protocol-level tests)
• Install: npx -y pairbook-mcp (stdio, read-only tools with annotations and output schemas, no API key, no account, no secrets)
• What it does: correlation (1/3/5-year weekly returns), covariance, beta vs S&P 500, volatility, max drawdown, fund facts and issuer-sourced ETF holdings overlap for 4,700+ US stocks and ETFs; any of the 11.3M possible pairs can be compared (52,000+ precomputed, the rest computed on demand). Data refreshes every trading day from the free PairBook API (https://www.pairbook.io).

Happy to provide anything else needed for the review.