- Add support for AEAD (AES-GCM, ChaCha20-Poly1305) and AES-KW (RFC 3394).
- Implement AES key and IV length validation in both C++ and TypeScript.
- Refactor `CompatibilityRunner` with grouped reporting and expanded test coverage.
- Improve KeyObject factories with automatic PEM-to-DER conversion.
- Standardize key exports to PKCS#8 (private) and SPKI (public) for better native compatibility.
- Add comprehensive test vectors for X.509, DH details, and PKI operations.
- Version bump to 0.3.1.