[BUG] Bash detach can truncate trailing output (StdoutPipe + Wait race)

[edenreich]

Summary

When a foreground bash command is detached to background (ctrl+b), the StdoutPipe + Wait handoff after detach can race and truncate the command's trailing output (#684). Minor robustness follow-up.

Steps to Reproduce

1. Run a bash command that emits output right up to the moment it exits.
2. Detach it to background mid-run (ctrl+b).
3. Read the shell output via BashOutput / /tasks; trailing lines emitted near process exit can be missing.

Expected Behavior

All output up to process exit is captured and readable after a detach.

Actual Behavior

Trailing output can be truncated due to a StdoutPipe + Wait race in the detach handoff.

Notes

• Relevant code: the bash detach path (internal/agent/tools/bash*.go) and internal/services/background_shell_service.go.
• Follow-up from feat(agent): interactive subagent management and unified background-work tracking #684.

[inference-gateway-releaser]

🎉 This issue has been resolved in version 0.128.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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