Implemented a comprehensive JMAP API client with the following features:
- HTTP request/response handling using cohttp-lwt-unix
- Session object fetching and parsing
- Core request serialization and response parsing
- Binary blob upload and download functionality
- Proper error handling with detailed error types

The module follows RFC8620 specifications for all API interactions,
including authentication, content handling, and URL template processing.

Note: Implementation currently has a compilation issue with ezjsonm package
that needs to be resolved.

🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>