- Add save-only endpoint (POST /conversations/{id}/save) for persisting
messages without triggering agent execution
- Add sessions command to list previous conversation sessions
- Add --resume flag to chat command for resuming sessions by ID
- Buffer streamed responses and save after completion
- Update AGENTS.md with session commands and remove outdated limitation
- Add 3 new tests for save endpoint (208 total)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>