Non-interactive install exits early with exit 0 after docker group add, requires manual re-run

[lyral-commits]

Description

In NEMOCLAW_NON_INTERACTIVE=1 mode, when the user is not yet in the docker group, the installer adds the user to the group, then prints manual re-run instructions and exits with code 0 instead of self-completing the flow (group activation → onboard) in a single invocation. After manually running newgrp docker and re-running the install command, onboard completed normally. This breaks the design intent of non-interactive mode and makes CI/CD pipelines unable to detect the failure via exit code.

Environment

Field	Value
Device	a1u2n2g-0087-02
OS	Ubuntu 24.04
Architecture	x86_64
Node.js	v22.22.3
npm	10.9.8
Docker	29.5.3, build d1c06ef
OpenShell CLI	0.0.44
NemoClaw	v0.0.55
OpenClaw	v2026.5.22

Steps to Reproduce

Precondition: Docker is NOT installed and the user is NOT in the docker group.

export NEMOCLAW_NON_INTERACTIVE=1
export NEMOCLAW_ACCEPT_THIRD_PARTY_SOFTWARE=1
export NVIDIA_API_KEY=nvapi-xxxxx
curl -fsSL https://www.nvidia.com/nemoclaw.sh | bash

Expected Result

A single invocation completes the entire flow: Docker install → docker group activation (e.g. via exec sg docker) → onboard, with no manual intervention required. On any incomplete stage, the installer should exit with a non-zero code.

Actual Result

After adding the user to the docker group, the installer printed manual re-run instructions and exited without completing onboard. Three issues observed:

1. [High] Non-interactive mode does not re-enter the shell automatically — after adding the user to the docker group, the installer did not run exec sg docker to activate the group; instead it exited and required manual action, violating the intent of non-interactive mode.
2. [High] Incorrect exit code — the install did not complete the onboard stage but returned exit 0, so CI/CD pipelines cannot detect the failure via exit code.
3. [Medium] Interactive prompts printed in non-interactive mode — under NEMOCLAW_NON_INTERACTIVE=1 the installer still printed prompts requiring manual action (Run: newgrp docker, Re-run: curl ...).

After manually running newgrp docker and re-running the install command, onboard completed normally.

Logs

[INFO]  Docker group membership is not active in this shell yet. To finish:
[INFO]    1) Run: newgrp docker   (or log out and log back in)
[INFO]    2) Re-run: curl -fsSL https://www.nvidia.com/nemoclaw.sh | bash

[laitingsheng]

Fixed by #4419