feat(affiliates): add gas rebate 66 for March 2026

[md0x]

Motivation

Run the monthly UMA voter gas rebate process for March 2026 and add the payout artifact to the repo for execution and auditability.

Summary

• Adds packages/affiliates/gas-rebate/rebates/Rebate_66.json
• Rebate metadata:
  • rebate: 66
  • fromBlock: 24558868
  • toBlock: 24781026
  • countVoters: 634
  • totalRebateAmount: 2.0729797831799184 ETH

Details

Rebate_66.json follows Rebate_65.json with a contiguous block range and captures the March 2026 voter gas rebate distribution.

Verification command

cd packages/affiliates
CUSTOM_NODE_URL="<YOURMAINNETRPCURL>" \
NODE_OPTIONS="--max-old-space-size=32768" \
OVERRIDE_FROM_BLOCK=24558868 \
OVERRIDE_TO_BLOCK=24781026 \
MIN_STAKED_TOKENS=1000 \
TRANSACTION_CONCURRENCY=20 \
MAX_BLOCK_LOOK_BACK=5000 \
MAX_PRIORITY_FEE_GWEI=0.001 \
yarn hardhat run ./gas-rebate/VoterGasRebateV2.ts --network mainnet

Testing

• Ran end-to-end test, running the code as in production
• New unit tests created
• Existing tests adequate, no new tests required
• All existing tests pass
• Untested

Issue(s)

N/A (monthly operational rebate update)