Remove --exit-on-stdin-eof

[dgageot]

No description provided.

[docker-agent]

Review Summary

Assessment: 🟢 APPROVE

This PR cleanly removes the --exit-on-stdin-eof flag and its associated functionality. The code review found:

✅ Complete Removal: All related code has been properly removed:

• Flag definition and initialization
• monitorStdin goroutine function
• Context cancellation wrapper
• Associated test file (api_test.go)
• Documentation references in TODO.md

✅ No Resource Leaks: The simplified runAPICommand still properly uses cmd.Context() and maintains correct resource cleanup with existing defer statements.

✅ No Breaking Changes: The removal doesn't introduce logic errors or leave orphaned code references.

The changes are safe and well-structured.

---

Automated review by cagent