- Added `github.com/ebitengine/purego` as a direct dependency to the project.
- Removed the unused `p8k.mleku.dev` dependency from the `go.mod` file.
- Refactored the `GenerateConversationKeyFromHex` function to clarify parameter order, aligning with the NIP-44 specification.
- Enhanced test cases for conversation key generation to ensure proper handling of public key formats and improved error messages.
- Updated the `Signer` interface to include methods for extracting and serializing public keys in compressed format.