feat: blast contract deployments

[Reinis-FRP]

Motivation

Potential UMA integrations would need to use Optimistic Oracle on Blast network.

Summary

Adds Optimistic Oracle contract deployments for Blast network.

Details

Changes proposed in this PR:

• Add Blast network as a supported network
• Deploy Blast contracts and L1 Parent Messenger
• Verify contracts
• Run all the required L1 and L2 configurations
• Update configuration and verification scripts (including new default gas limit of 500k in parent messenger)
• Update readme

This requires governance action set Blast parent messenger on L1 (see verification script below):

$ yarn hardhat verify-xchain --network mainnet --l2 blast

🌕 Verifying L1 contract state 🌕
  GovernorHub
    - Owner set to Governor: ✅
    - Messenger for chain ID 81457 set to ParentMessenger: ❌ ==> Requires governance action
  OracleHub
    - Owner set to Governor: ✅
    - Messenger for chain ID 81457 set to ParentMessenger: ❌ ==> Requires governance action
  Blast_ParentMessenger
    - Owner set to Governor: ✅
    - Child chain ID set to 81457: ✅
    - Set childMessenger address: ✅
    - Set oracleHub address: ✅
    - Set governorHub address: ✅
    - Set oracleSpoke address: ✅
    - Set governorSpoke address: ✅
  Registry
    - OracleHub registered: ✅

🌚 Verifying L2 contract state 🌚
  Registry
    - OptimisticOracle registered: ✅
    - OptimisticOracleV2 registered: ✅
    - OptimisticOracleV3 registered: ✅
    - Owned by GovernorSpoke: ✅
  Store
    - Owned by GovernorSpoke: ✅
  IdentifierWhitelist
    - Owned by GovernorSpoke: ✅
  OptimisticOracleV3
    - Owned by GovernorSpoke: ✅
  AddressWhitelist
    - Owned by GovernorSpoke: ✅
  Blast_ChildMessenger
    - Set oracleSpoke: ✅
    - Set parentMessenger: ✅
  Finder
    - Owned by GovernorSpoke: ✅
    - Set "Store" in Finder: ✅
    - Set "IdentifierWhitelist": ✅
    - Set "CollateralWhitelist" in Finder: ✅
    - Set "Oracle" in Finder (to OracleSpoke): ✅
    - Set "OptimisticOracle" in Finder: ✅
    - Set "OptimisticOracleV2" in Finder: ✅
    - Set "OptimisticOracleV3" in Finder: ✅
    - Set "ChildMessenger" in Finder: ✅

Following collateral currencies have been pre-approved on Blast:

• WETH at 0x4300000000000000000000000000000000000004 with 0.135 final fee. This is rebasing token that captures yield from staking ETH on L1 bridge.
• USDB at 0x4300000000000000000000000000000000000003 with 250 final fee. Users who bridge stablecoins receive USDB, Blast’s auto-rebasing stablecoin. The yield for USDB comes from MakerDAO’s on-chain T-Bill protocol. USDB can be redeemed for DAI when bridging back to Ethereum.
• WBTC at 0xF7bc58b8D8f97ADC129cfC4c9f45Ce3C0E1D2692 with 0.025 final fee.

Testing

Check a box to describe how you tested these changes and list the steps for reviewers to test.

• [ ] 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)

Fixes https://linear.app/uma/issue/UMA-2515/blast-contract-deployments

[linear[bot]]

UMA-2515 Blast contract deployments