Update go.mod module line, all require/replace directives, and every
.go import path from forge.lthn.ai/core/go-blockchain to
dappco.re/go/core/blockchain. Add replace directives to bridge
dappco.re paths to existing forge.lthn.ai registry during migration.
Update CLAUDE.md, README, and docs to reflect the new module path.
Co-Authored-By: Virgil <virgil@lethean.io>
TxInputZC (v2+) inputs have key images that must be tracked for
double-spend detection, same as TxInputToKey.
Co-Authored-By: Charon <charon@lethean.io>
Add SyncOptions with VerifySignatures flag and hardfork schedule.
ValidateMinerTx and ValidateTransaction called during block processing.
Co-Authored-By: Charon <charon@lethean.io>
Add comprehensive tests exercising regular transaction processing through
the sync pipeline (key image marking, output indexing, cumulative
difficulty) and not-found error paths for all query methods. Coverage
rises from 65.8% to 80.1%.
Co-Authored-By: Charon <charon@lethean.io>