- Created common types (Hash, Address) in crypto/common
- Created hexutil utilities for hex encoding/decoding
- Created math utilities for big integer operations
- Created minimal RLP encoder for crypto package needs
- Updated all imports from github.com/luxfi/geth to local packages
- All tests pass with no functionality changes
- Created utils package with common types (Address, Hash, Big1, Big0)
- Added utility functions (BytesToAddress, HexToAddress, CopyBytes, FromHex)
- Implemented math utilities (PaddedBigBytes, MustParseBig256)
- Created minimal RLP encoder for CreateAddress function
- Added hexutil functions for KZG4844 support
- Updated all imports to use local utils instead of geth
- All tests passing successfully