- Bumped version of lol.mleku.dev from v1.0.4 to v1.0.5.
- Added new dependencies: p256k1.mleku.dev and several indirect dependencies for improved cryptographic functionality.
- Refactored p256k package to utilize p256k1.mleku.dev/signer for signature operations, replacing the previous btcec implementation.
- Removed the secp256k1.go file, consolidating the crypto logic under the new p256k1 library.
- Updated documentation to reflect changes in the signer interface and usage.
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