Add live protocol proof widget to homepage

[GsCommand]

Motivation

• Replace the homepage's simulated proof animation with an honest, live protocol loop that calls production runtime and verifier endpoints and demonstrates that valid receipts verify and tampered receipts reject.
• Surface the Resolve → Sign → Verify → Tamper → Reject flow so visitors can watch real signing and verification behavior without introducing secrets, changing APIs, or altering schemas.

Description

• Inserted a new “Live Protocol Proof” section into public/index.html (placed after the hero/receipt preview) with eyebrow/headline/subheadline, five live step rows (Resolve, Sign, Verify, Tamper, Reject), summary panels, CTAs, and a collapsible raw-JSON view.
• Implemented plain-browser JavaScript that calls POST https://runtime.commandlayer.org/trust-verification/sign/v1.0.0 to obtain a receipt, posts the receipt to POST https://runtime.commandlayer.org/verify for verification, clones and tampers the receipt (result.payload.message), and re-posts to /verify to demonstrate rejection, while compacting long hashes and showing per-step statuses.
• Kept the existing hero receipt animation but relabeled it as a preview and modified the original animation script to be an explanatory preview while the new live widget performs the real calls; added transport/error handling to surface TRANSPORT_ERROR and the message “Runtime or verifier unavailable. No success was faked.”

Testing

• Ran npm install and npm test, and the test suite completed with all tests passing (26 passed, 0 failed).
• Ran the example checks under examples/webhook-auto-verify with npm install and npm run check, and npm run check completed successfully.
• Attempted npm run build but the repository does not define a build script, so no build step was executed.

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Codex Task

[vercel]

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Project	Deployment	Actions	Updated (UTC)
commandlayer-commandlayer-org	Ready	Preview, Comment	May 21, 2026 10:51pm
commandlayer-org	Ready	Preview, Comment	May 21, 2026 10:51pm
commandlayer-org111	Ready	Preview, Comment	May 21, 2026 10:51pm