Write onchain report

[fmonper1]

This pull request adds a new on-chain write workflow that integrates off-chain and on-chain data using EVM smart contracts. The main changes include introducing contract ABIs, implementing a cron-triggered workflow, and providing logic to read from and write to EVM contracts. Below are the most important changes grouped by theme:

Smart Contract ABI Definitions

• Added STORAGE_ABI and CALCULATOR_CONSUMER_ABI constants in abi.ts to define the interfaces for the storage and calculator consumer smart contracts, enabling contract interaction in the workflow.

Workflow Implementation

• Implemented a new workflow in on-chain-write.ts that:
  • Defines a configuration schema for scheduling and EVM connection parameters.
  • Fetches off-chain data via HTTP, reads on-chain data from the storage contract, combines the results, and writes the final result to the calculator consumer contract.
  • Uses a cron trigger to schedule workflow execution.

EVM Contract Interaction

• Added logic to encode/decode function calls and results using the provided ABIs, including dry-run validation of results and transaction submission to the calculator consumer contract.

Error Handling and Logging

• Included error handling for missing configuration and anomalous results, as well as logging at key steps for easier debugging and monitoring.

Workflow Entrypoint

• Provided a main function to initialize and run the workflow, registering the cron trigger handler and ensuring proper startup sequence.

[github-actions]

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