Block size constraints

Since we are not taking into account block size constraints, we might be overestimating MEV. To fix this we could run some builder algorithm on top of all the set of available transactions at the block building time plus all the bundles with backruns.

Start by tracing the MEV estimation flow that uses available transactions and backrun bundles at block-building time. Compare its estimates with a builder algorithm that enforces block-size constraints across those inputs. Done means the estimates reflect feasible block contents rather than overstating MEV.

Written by the indexing model from the issue text.