Expanding the set of hints

[sketsdever]

Currently the mev_sendBundle and event-stream APIs support sharing the following hints: logs, calldata, function selector, contract address.

One early idea is to also share the orderflow source (eg. the wallet or dapp a transaction originated from). This could reduce execution risk by distinguishing between informed and retail flow.

Searchers: What other hints would better enable you to search on programmably private orderflow from MEV-share?