Add Binance Wallet quote source

[dglowinski]

Summary

• Add Binance Wallet as a signed aggregator quote source for the router.
• Select Binance Wallet's best supported swap route and build calldata from the returned quote id.

Changes

• Register a single binance-wallet provider instead of vendor-specific sub-sources.
• Sign Binance Web3 requests with BINANCE_WALLET_API_KEY and BINANCE_WALLET_SECRET_KEY.
• Keep supported chains hardcoded in the source and expose only the required credential placeholders in .env.template.
• Preserve the existing Pendle alias expansion while adding Binance Wallet to the Balmy strategy defaults.

Test plan

• pnpm run lint
• pnpm run build
• git diff --check
• Reflected providers locally and confirmed binance-wallet is exposed
• Run a live Binance Wallet quote once production/staging credentials are configured

[LeonardEulerXYZ]

Walkthrough

Overview

Adds binance-wallet as a custom Balmy quote source, wires signed Binance Web3 quote/swap requests into the aggregator source list, adds credentials to .env.template, and extends the source alias expansion so configured/provider-selected aliases still compose with the existing Pendle expansion.

Review effort

Medium. I reviewed the full diff, the new Binance Wallet source, the strategy filter/alias wiring, credential handling, and the signed request path. I also ran a local mocked quote/buildTx smoke for the source. Live Binance quote execution remains intentionally unverified until staging/prod credentials are configured.

Validation

Reviewed head: 7fd49a96d103714b017507cb6bb12753b958c7e7

• git diff --check origin/development...HEAD
• pnpm install --frozen-lockfile
• pnpm run lint
• pnpm run build
• Local throwaway tsx smoke for CustomBinanceWalletQuoteSource: mocked quote routes selected the best SWAP route, applied slippage, built swap tx calldata/value, and attached X-OC-* signature headers.
• Security/supply-chain sweep over the diff: no dependency/lockfile/workflow changes; new network surface is limited to signed requests to https://web3.binance.com; no hardcoded secret values added.

Verdict

Comment only — no blocking findings found.

Notes

• The source correctly refuses to quote/build tx without both Binance Wallet credentials.
• Binance live behavior still needs the PR’s own pending test-plan item once real credentials exist: one live quote + swap-build response shape check.
• No inline comments from me; nothing I saw merits blocking the PR.