PTY Support & Sandbox Cleanup
This release improves interactive workflows and system hygiene.
We added end-to-end PTY support across daemon, API, SDKs, and docs for real-time terminal sessions, resizing, and process control. Build-failed sandboxes now auto-expire after 7 days to keep environments clean. We also prioritize syncing newer sandboxes first, refine runner assignment by availability score, fix SDK edge cases (download_file coroutine, JS vs TS coderun, SSH access response), and ship release/CI/OpenAPI chores for a smoother toolchain.