DEVREL-1052 feat: add tempo example to oft-alt example folder

[St0rmBr3w]

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[cursor]

PR Summary

Introduces a full OFTAlt + standard OFT example showcasing Alt Endpoint (Tempo) ↔ standard EVM (Arbitrum) connectivity with ERC‑20 fee payment and simple config tooling.

• Adds MyOFT.sol (standard OFT) and deploy/MyOFT.ts for EVM chains using native gas
• New Hardhat networks (arbitrum-sepolia, tempo-testnet) and task wiring via tasks/ (send flow auto-detects Alt endpoints, handles ERC‑20 fee approvals)
• Adds layerzero.config.ts using Simple Config Generator (metadata-tools) with enforced options and two-way pathways
• Overhauls README to document setup, deploy, wiring, and cross-chain sends (Tempo ↔ Arbitrum); updates logo/links
• Updates tooling/deps to latest LayerZero packages and adds ESLint root; includes changeset for minor version bump

^{Written by Cursor Bugbot for commit 099d26d. This will update automatically on new commits. Configure here.}

[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/​solhint-config@​3.0.151
	npm/​@​layerzerolabs/​lz-evm-messagelib-v2@​3.0.151
	npm/​hardhat@​2.28.2
	npm/​prettier@​3.7.4
	npm/​@​nomicfoundation/​hardhat-ethers@​3.1.3
	npm/​@​layerzerolabs/​lz-definitions@​3.0.151
	npm/​@​layerzerolabs/​lz-v2-utilities@​3.0.151

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[github-actions]

🚨 E2E Tests Failed

The E2E tests failed during CI. These tests validate real blockchain interactions and may fail due to:

• Network connectivity issues
• RPC rate limiting
• External service downtime
  Action Run: https://github.com/LayerZero-Labs/devtools/actions/runs/20725901058

This is non-blocking and does not prevent merging. Check the action logs above for detailed failure information.

[github-actions]

🚨 E2E Tests Failed

The E2E tests failed during CI. These tests validate real blockchain interactions and may fail due to:

• Network connectivity issues
• RPC rate limiting
• External service downtime
  Action Run: https://github.com/LayerZero-Labs/devtools/actions/runs/20727141333

This is non-blocking and does not prevent merging. Check the action logs above for detailed failure information.