Fix state_history zlib_unpack bug

[huangminghuang]

Change Description

This PR

• fixes a bug in zlib_unpack(),
• prints more context in state_history_traces_log::get_log_entry if an exception is thrown to facilitate debugging.

Change Type

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• Documentation

• Stability bug fix

• Other

• Other - special case

Testing Changes

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Consensus Changes

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API Changes

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Documentation Additions

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