Summary

Adds Across support for HyperLiquid-source Perps withdraw post-quote flows in transaction-pay-controller.

Changes

• Adds perpsAcrossWithdraw to TransactionType for Across Perps withdraw bridge legs.
• Detects direct and nested perpsWithdraw transactions.
• Allows supported HyperLiquid-source Perps withdraw post-quote requests through the Across strategy.
• Normalizes HyperLiquid-source Across requests to HyperCore USDC-PERPS and shifts USDC amounts from 6 to 8 decimals.
• Uses Arbitrum USDC as the fiat-rate anchor for HyperCore USDC-PERPS source quotes.
• Skips prepending the original EVM transaction for HyperLiquid-source post-quote Across withdraw submissions.

Validation

• yarn workspace @metamask/transaction-pay-controller run jest --no-coverage src/utils/transaction.test.ts src/strategy/across/AcrossStrategy.test.ts src/strategy/across/across-quotes.test.ts src/strategy/across/across-submit.test.ts
• yarn exec eslint packages/transaction-controller/src/types.ts packages/transaction-pay-controller/src/utils/transaction.ts packages/transaction-pay-controller/src/utils/transaction.test.ts packages/transaction-pay-controller/src/strategy/across/AcrossStrategy.ts packages/transaction-pay-controller/src/strategy/across/AcrossStrategy.test.ts packages/transaction-pay-controller/src/strategy/across/across-quotes.ts packages/transaction-pay-controller/src/strategy/across/across-quotes.test.ts packages/transaction-pay-controller/src/strategy/across/across-submit.ts packages/transaction-pay-controller/src/strategy/across/across-submit.test.ts packages/transaction-pay-controller/src/strategy/across/perps.ts
• yarn build
• yarn changelog:validate
• git diff --check