- Integrated furqansiddiqui/bip39-mnemonic-php source code into src/BIP39
- Replaced Charcoal\Buffers dependency with custom Buffer implementation
- Updated all namespaces from FurqanSiddiqui\BIP39 to ItHealer\LaravelTron\BIP39
- Removed furqansiddiqui/bip39-mnemonic-php and charcoal-dev/buffers dependencies
- This resolves the composer dependency conflict with charcoal-dev/buffers

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>