[ARFC] Onboard PAXG to the Global Dollar Hub in Aave V4 Ethereum

An ARFC proposal by Aave Labs seeks to onboard Pax Gold (PAXG), an ERC-20 token issued by Paxos Trust Company representing one fine troy ounce of London Good Delivery gold, to the Global Dollar Hub on the Aave V4 Ethereum instance. The proposal aims to add a gold-backed, non-correlated real-world asset to broaden collateral and liquidity beyond dollar-denominated exposures. Final risk parameters will be set by Risk Service Providers, with next steps including community feedback, service provider assessments, a Snapshot vote, and execution via the V4 Security Council.