v0.1.0

Release v0.1.0 - Initial public release

First official release of Jetta - a fast, secure JWT CLI tool.

Features:
- Decode JWTs without requiring secrets
- Validate signatures with cryptographic verification
- Support for all major algorithms (HMAC, RSA, ECDSA, EdDSA)
- Multiple input methods (CLI, file, stdin)
- Human-readable and JSON output formats
- Humanized time display for token expiration
- Pre-built binaries for Linux, macOS, and Windows