Properly propagate "external" errors from erc4626 buffers/vaults #614
Description
Add liquidity to Base Aave GHO-USDC pool fails because Base GHO market is maxed out.
-> GHO market being maxed out would fail on wrapping GHO via the buffer
SDK should be able to properly propagate a meaningful errors to consumers (e.g. FE) so they can parse/handle it accordingly
Note: errors internal to Balancer are already being properly handled because we provide our ABIs to viem, which can then parse the error signature. Not sure how to handle "external" calls, like these made to erc4626 buffers/vaults.