Remove remaining commercial payment leftovers from public repo

[GsCommand]

Motivation

• Remove private commercial/payment implementation and operational DB migrations from the public commandlayer-org repo so it surfaces only public protocol, docs, and verifier code.
• Replace executable monetization examples with public-safe documentation and remove any secrets/checkout/session wiring that belonged to commandlayer/commercial.
• Preserve public-facing schemas, verifier flows, and read-only lookup routes while eliminating payment-specific runtime behavior and tests.

Description

• Deleted runtime/payment code and examples: removed lib/stripe-client.js, lib/x402ProviderVerification.js, api/examples/x402-paid-action.js, the examples/x402-paid-action-receipt example folder, and related tests tests/api-x402-paid-action.test.js and tests/x402-paid-action-receipt.test.js.
• Removed operational DB migrations related to claims/payments/cards: deleted db/migrations/002_claim_status_machine.sql, db/migrations/003_agent_cards.sql, and db/migrations/004_payments.sql, keeping only the minimal intake migration db/migrations/001_claim_requests.sql.
• Public-safe doc and UI cleanup: removed X402_PROVIDER_* env docs from docs/ops/environment.md, removed x402 endpoint links from public/integrations.html and public/proof-flow-composer.html, and updated scripts/check-local-links.mjs to drop the removed route from the allowlist.
• Dependency/prune: removed stripe from package.json dependencies and committed the changes.
• Kept public, read-only verifier and registry behavior such as api/agent-cards/card.js and the public schemas and manifests intact.

Testing

• Ran npm test which executed the test suite and reports 65 tests passed, 0 failed, and all suites completed successfully.
• Executed repo-wide search for private/commercial markers with the supplied regex and confirmed no matches remain for the targeted tokens.
• npm install --package-lock-only was attempted but failed due to an external registry 403 Forbidden in this environment; this is an environment/network restriction and did not affect the test run or repository edits.

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Codex Task

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Project	Deployment	Actions	Updated (UTC)
commandlayer-commandlayer-org	Ready	Preview, Comment	May 24, 2026 8:15pm
commandlayer-org	Ready	Preview, Comment	May 24, 2026 8:15pm
commandlayer-org111	Ready	Preview, Comment	May 24, 2026 8:15pm