v0.3.8

Added

• Support for subject parameter in transactional templates (PR #24)
• FAQ section to README.md (PR #22)
• Four new API methods to the public interface
• CLAUDE.md with project overview, development commands, code style, and key patterns
• WARP.md documentation
• Ruff formatting configuration

Changed

• Extensive type annotation improvements for better IDE support (PyLance/VS Code)
• HTTP response validation and parsing refactored for better error handling
• Headers type fix: now properly uses string values instead of list of dictionaries
• Code formatting with ruff throughout the codebase
• Documentation improvements in README.md

Fixed

• Custom exception renamed from FileNotFoundError to ListmonkFileNotFoundError to avoid builtin conflict
• Non-string to string types in __all__ exports
• Type inference error in code fragments

Thanks @neilime and @obrizan for the PRs.