Add eve + Pay.sh agent example

[GuiBibeau]

Description

Adds a minimal eve agent that demonstrates an approval-gated Pay.sh sandbox payment.

• Inspects the HTTP 402 terms without paying
• Shows the amount, USDC mint, recipient, and localnet network before approval
• Rechecks every approved field before handing off to the pinned Pay.sh CLI
• Disables general shell, filesystem, and web tools
• Includes Vercel Templates metadata and a one-click deploy link

The sandbox CLI performs its own final challenge fetch, so the recheck is defense in depth rather than a cryptographic binding. Production signing must bind to the approved challenge or enforce hard client-side limits.

No user wallet, private key, mainnet funds, or real payment is used.

Demo URL

https://eve-pay-agent.vercel.app

Connect with eve dev https://eve-pay-agent.vercel.app to try the agent flow.

Type of Change

• New Example
• Example updates (Bug fixes, new features, etc.)
• Other (changes to the codebase, but not to examples)

New Example Checklist

• 🛫 npm run new-example was used to create the example
• 📚 The template was not used, but I carefully read the Adding a new example steps and implemented them in the example
• 📱 Is it responsive? Are mobile and tablets considered? N/A: there is no authored web UI; the deployment uses eve generated status page and terminal client.

[vercel]

@GuiBibeau is attempting to deploy a commit to the Vercel Labs Team on Vercel.

A member of the Team first needs to authorize it.

[socket-security]

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

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	npm/​eve@​0.22.5
	npm/​@​types/​node@​24.5.2
	npm/​ai@​7.0.22
	npm/​@​solana/​addresses@​6.9.0

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