- Add JakartaError base class with error codes and retry semantics
- Add typed error classes for network, session, compaction, process, channel, and gateway errors
- Add withRetry utility with exponential backoff, jitter, and abort support
- Add CancellationToken with hierarchical parent-child cancellation support
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
