- Add propose_only_if_mempool_not_empty config option (default: True) to skip block proposals when mempool is empty
- Add detailed logging for transaction processing in block proposals (sender/recipient validation, balance checks, duplicate detection)
- Check for existing transactions in database before adding to prevent duplicates
- Improve genesis block creation: check by height and hash, use "genesis" as proposer to avoid hash conflicts
- Add proper error handling and rollback for
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