docs: update mppx hooks documentation

[brendanjryan]

Summary

Update the TypeScript SDK docs and blog with mppx payment hook coverage, and bump mppx to 0.6.24.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
mpp	Ready	Preview, Comment	May 15, 2026 10:27pm

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	mppx@​0.6.24

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[chatgpt-codex-connector]

💡 Codex Review

mpp/src/pages/blog/index.mdx

Line 28 in 5bfb1ac

to: "/blog/subscriptions",

Remove unpublished subscriptions link from blog index

This list item links to /blog/subscriptions, but there is no corresponding route file under src/pages/blog in this commit, so the card resolves to a 404 when users click it. Either add the missing subscriptions post page in the same change or remove this entry until the page exists.

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