feat: add AI Evidence Oracle example (Procedural Proof)

[fmdd123123-create]

A new trust primitive for the AI era — OApp that verifies AI process compliance (not data correctness) and dispatches verified decisions cross-chain via LayerZero V2.

Four-layer architecture:

1. Evidence: AI submits decision + evidence hash (IPFS commitment)
2. Verification: Independent verifiers audit SOP compliance
3. Distribution: LayerZero dispatches verified decisions cross-chain
4. Execution: Target chain receives and acts

Trust model isomorphic to DVN:

• DVN verifies transport integrity (hash comparison)
• EvidenceOracle verifies process compliance (SOP audit)
• Both are permissionlessly challengeable (fraud proof via replay)

Includes:

• EvidenceOracle.sol — single OApp contract
• Hardhat tasks: ai:submit, verify:decision, dispatch:decision, challenge:decision
• SOP framework with example (rainfall trigger for insurance)
• layerzero.config.ts for Sepolia ↔ BSC Testnet
• Full README with architecture explanation

Live deployment:

• Sepolia: 0xaa24CC417EC7ae219F52C400E64E600AAfD3f45d
• BSC Testnet: 0xc7FFF00d2c2C6B0aC5D726d3E6e317cCae638214

[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/​@​layerzerolabs/​oapp-evm@​0.1.0
	npm/​@​layerzerolabs/​toolbox-hardhat@​0.4.0
	npm/​ethers@​6.17.0
	npm/​solhint@​5.2.0
	npm/​@​layerzerolabs/​lz-definitions@​3.1.9
	npm/​@​nomicfoundation/​hardhat-toolbox@​5.0.0
	npm/​hardhat@​2.29.1
	npm/​@​layerzerolabs/​lz-v2-utilities@​3.0.168
	npm/​hardhat-deploy@​0.14.1
	npm/​@​openzeppelin/​contracts@​5.7.0
	npm/​@​nomicfoundation/​hardhat-ethers@​3.1.3

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[socket-security]

Warning

Review the following alerts detected in dependencies.

According to your organization's Security Policy, it is recommended to resolve "Warn" alerts. Learn more about Socket for GitHub.

Action	Severity	Alert  (click "▶" to expand/collapse)
Warn		Obfuscated code: npm yargs is 90.0% likely obfuscated Confidence: 0.90 Location: Package overview From: examples/oapp-ai-oracle/package.json → npm/hardhat@2.29.1 → npm/yargs@17.7.3 ℹ Read more on: This package | This alert | What is obfuscated code? Next steps: Take a moment to review the security alert above. Review the linked package source code to understand the potential risk. Ensure the package is not malicious before proceeding. If you're unsure how to proceed, reach out to your security team or ask the Socket team for help at support@socket.dev. Suggestion: Packages should not obfuscate their code. Consider not using packages with obfuscated code. Mark the package as acceptable risk. To ignore this alert only in this pull request, reply with the comment @SocketSecurity ignore npm/yargs@17.7.3. You can also ignore all packages with @SocketSecurity ignore-all. To ignore an alert for all future pull requests, use Socket's Dashboard to change the triage state of this alert.

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