- Replace hardcoded Infura API key with INFURA_API_KEY env var; fail fast
with a helpful message if unset and no --rpc-url is given
- Add onchain/script/backtesting/.gitignore (cache/) instead of relying on
the opaque root pattern; remove force-tracked cache/.gitkeep (mkdirSync
creates the directory at runtime)
- Document resume constraint: reliable only when both --start-block and
--end-block are explicit, or --output is set
- Fix batch-number display: derive batchNum inside the loop from the actual
`from` block so it stays correct when resumeFromBlock isn't BATCH_SIZE-aligned
- Guard log.logIndex === null consistently with blockNumber/transactionHash
- console.warn on decode errors instead of silently discarding them
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
