Rebuild runtime-core and canonical-receipts protocol reference pages

[GsCommand]

Motivation

• The existing public/runtime-core.html and public/canonical-receipts.html were placeholder/thin pages linked from the site footer/docs and needed full protocol-level reference content.
• Provide deterministic, canonical protocol guidance for receipt creation and verification without changing API routes, schemas, or deleting files.
• Remove stale/legacy proof terminology and align visible copy to the canonical metadata.proof model and trust boundaries.
• Preserve the site look-and-feel (light ENS/Stripe direction), canonical nav/Docs dropdown, and grouped footer.

Description

• Rebuilt public/runtime-core.html with a full reference including hero copy, "what it does" and "what it is not" cards, proof pipeline flow, canonical metadata.proof field block, stack placement, verification result model, and developer link cards.
• Rebuilt public/canonical-receipts.html with hero copy, receipt semantics cards, a complete receipt JSON example, required proof field list, verification lifecycle flow, valid vs tampered outcomes, schema-vs-proof warning, usage surfaces, trust boundaries, and CTA section.
• Aligned both pages to the canonical top nav (including Docs dropdown) and 3-column grouped footer, added consistent CSS snippets and card/code-block layouts, and avoided introducing legacy proof field names.
• Kept canonical protocol values and notation such as json.sorted_keys.v1, SHA-256, Ed25519, vC4WbcNoq2znSCiQ, runtime.commandlayer.eth, and https://runtime.commandlayer.org.

Testing

• Ran npm install in the repo and the examples; install completed without errors.
• Ran npm test in the repo and all tests passed (node --test tests/*.test.js reported successful assertions).
• Attempted npm run build but the repository has no build script (noted and skipped).
• Ran cd examples/webhook-auto-verify && npm install and cd examples/webhook-auto-verify && npm run check and the example checks passed (all example verification tests succeeded).

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Codex Task

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Project	Deployment	Actions	Updated (UTC)
commandlayer-commandlayer-org	Ready	Preview, Comment	May 21, 2026 10:02pm
commandlayer-org	Ready	Preview, Comment	May 21, 2026 10:02pm
commandlayer-org111	Ready	Preview, Comment	May 21, 2026 10:02pm