Add logging for batch header hash for batcher-node

[jianoaix]

Why are these changes needed?

To make it easier to correlate batcher-node communication on a per batch basis

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.
• Testing Strategy
  • Unit tests
  • Integration tests
  • This PR is not tested :(

[ian-shim]

I don't have a strong opinion but this will result in a lot of extra lines of logs.
What do you think about passing the batch header hash in the signer message and logging it as part of logs here and here?

[ian-shim]

can we also log operator IDs here and below?

[jianoaix]

here

Sounds good to me

[jianoaix]

Tested:

2024-05-08 13:22:02.220 | {"time":"2024-05-08T20:22:02.220421429Z","level":"WARN","source":{"function":"github.com/Layr-Labs/eigenda/core.(*StdSignatureAggregator).AggregateSignatures","file":"/app/core/aggregation.go","line":131},"msg":"error returned from messageChan","component":"SignatureAggregator","operatorID":"39638352822b2eecf33f2ea0e6893a576edbcc202b4925c3ab2875677945bf58","operatorAddress":"0xad9770d6b5514724c7b766f087bea8a784038cbe","socket":"18.208.146.49:32007;32008","batchHeaderHash":[147,252,95,99,206,177,111,125,109,84,0,119,245,234,89,206,143,59,28,166,14,208,146,106,212,88,205,139,38,154,149,48],"err":"rpc error: code = DeadlineExceeded desc = context deadline exceeded"}