fix(sim-setup): stop suggesting re-setup when no install is found

[AYANscyy2]

Summary

Follow-up to #8370, addressing the second point in #8353.

When no install is found, start/stop/restart/update/logs/down print "No Sim install detected. Run npx sim-setup first." — which reads as "install again". It's wrong in the two common cases:

1. Docker isn't running. A Compose stack is invisible, not missing. status already says this; the lifecycle commands didn't.
2. The stack was taken down and the command runs from another folder. compose ls no longer lists it, and it's only discoverable from its own directory or with --dir (via composeInstallFromDirectory).

This adds noInstallHint({ dockerReachable, cwd }), used by runLifecycle and by status's Docker-up branch:

• Docker down → say so, and to start Docker and re-run (no setup suggestion).
• Docker up → name the directory searched, point existing users at the folder containing sim/ or --dir <path-to-sim>, then suggest npx sim-setup for new users.

No detection logic changes; only the message.

Type of Change

• Bug fix

Testing

• 2 unit tests for both branches of the hint; bun run test in sim-setup passes, tsc --noEmit and Biome clean
• Manual, Arch Linux + Compose install:

Stack down, run from another folder — before

│
▲  No Sim install detected. Run npx sim-setup first.

Same — after

│
▲  No Sim install found from /home/ayan.
│  Docker Compose install? Run this from the folder that contains your sim/ directory, or pass --dir <path-to-sim>.
│  Kubernetes install? Check that your current kubectl context is the one Sim was installed in.
│  New here? Run npx sim-setup.

Docker stopped — before

│
▲  No Sim install detected. Run npx sim-setup first.

Docker stopped — after

│
▲  Docker is not reachable, so a Compose install cannot be detected.
│  Start Docker (Docker Desktop or OrbStack, or the docker service on Linux), then re-run this command.

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated
docs	Skipped		Sep 30, 2026 4:54pm UTC

[greptile-apps]

Confidence Score: 4/5

[Medium risk] Changes simulator setup status messages.

The PR should satisfy the repository’s package-manager requirement before merging.

Findings

1.  Setup hint violates package-manager rule ▶

Summary

The PR replaces the generic no-install message with guidance for an unreachable Docker daemon, an undiscovered Compose directory, or a Kubernetes context mismatch.

• The latest changes add Linux Docker-service advice and Kubernetes-specific guidance.

_{Reviews (2) · Last reviewed commit: "fix(sim-setup): address review feedback ..."}

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