feat: set up tenderly

[Le-Caignec]

Summary
Set up Tenderly Actions infrastructure (monitoring/automation) for the RLC multichain project with an initial sample action.

Motivation
Implement monitoring to maximize bridge security and be alerted in case of unusual behavior.

Main Changes
• Added the tenderly-actions folder.
• Added tenderly.yaml (project config + runtime + triggers).
• Added package.json (dependencies required for the actions).
• Example action: block-number-printer (a hello-world style Action just to validate the setup).
• Dedicated README.

Local Test Commands

cd tenderly-actions
npm install
npm run build          # Compile locally
npm run deploy         # Deploy all actions

After deployment, you can connect to Tenderly and view the HelloWorld Action here

Useful links

• Tenderly Actions Documentation
• Tenderly CLI Reference

[Copilot]

Pull Request Overview

This PR sets up Tenderly for blockchain monitoring and automation by adding a complete Tenderly Actions configuration. The setup includes example block monitoring functionality for the Arbitrum mainnet network.

Key changes:

• Created Tenderly project configuration with block monitoring action
• Added TypeScript build system for Tenderly actions
• Included example action that logs block events every 10 blocks

Reviewed Changes

Copilot reviewed 5 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tenderly.yaml	Main configuration defining the Tenderly project, actions, and block triggers for Arbitrum mainnet
tenderly-actions/tsconfig.json	TypeScript configuration for building Tenderly actions
tenderly-actions/package.json	Package definition with build/deploy scripts and Tenderly dependencies
tenderly-actions/example.ts	Example TypeScript action function that logs block events
tenderly-actions/README.md	Documentation for setup, deployment, and usage of Tenderly actions

Files not reviewed (1)

• tenderly-actions/package-lock.json: Language not supported

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[codecov]

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[zguesmi]

Add a note in the root README.