BlobMinibatchMapping maps blob key to minibatches it's part of.
This will be used to
1) fetch blob metadata + commitment/quorum infos necessary to process full batches in BatchConfirmer
2) link blob key to minibatches to generate preconfs for specific blob
Checks
[ ] I've made sure the lint is passing in this PR.
[ ] I've made sure the tests are passing. Note that there might be a few flaky tests, in that case, please comment that they are not relevant.
Why are these changes needed?
BlobMinibatchMappingmaps blob key to minibatches it's part of. This will be used to 1) fetch blob metadata + commitment/quorum infos necessary to process full batches inBatchConfirmer2) link blob key to minibatches to generate preconfs for specific blobChecks