feat: add db writer, types, logging, util and test infrastructure#4

Merged

cendhu merged 9 commits intoLF-Decentralized-Trust-labs:mainfrom

farooqazamwasimnl:feat/02-db-writer

Mar 3, 2026

Commits on Feb 24, 2026

feat: add db writer, types, logging, util and test infrastructure
farooqazamwasimnl
committed

Commits on Feb 25, 2026

chore: remove stacked PR plan file
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refactor: replace custom logging with flogging from hyperledger/fabric
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refactor: remove constants package, defer to fabric types in later PRs
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refactor: restructure types hierarchically to eliminate duplicate fields
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refactor: use natural composite PKs throughout, batch all inserts with pgx
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refactor: split tx_reads/tx_writes into tx_reads_only, tx_read_writes, tx_blind_writes
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chore: add golangci-lint config and clean up code style
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refactor: remove redundant Number field from ProcessedBlock
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