After HF5 activation, only version 3 transactions are accepted.
Before HF5, version 3 is rejected. Matches C++ check_tx_semantic
hardfork gating logic.
Co-Authored-By: Charon <charon@lethean.io>
Add ErrBlockVersion as an alias for ErrBlockMajorVersion for clarity.
Add table-driven tests for expectedBlockMajorVersion covering all
hardfork boundaries (HF0 through HF4+) on both mainnet and testnet
schedules. Add standalone checkBlockVersion tests with Good/Bad/Ugly
pattern including version 255 edge case and exact HF1 boundary checks.
Co-Authored-By: Charon <charon@lethean.io>
Adds expectedBlockMajorVersion and checkBlockVersion, called from
ValidateBlock before timestamp validation. Block version must match
the fork era: HF0->0, HF1->1, HF3->2, HF4+->3.
Tests cover both mainnet and testnet fork schedules including
boundary heights.
Co-Authored-By: Charon <charon@lethean.io>
Add consensus/ package with doc.go and sentinel error types for all
validation failures. Add MaxTransactionBlobSize constant to config.
Co-Authored-By: Charon <charon@lethean.io>
