[Bug] stopLlamaServer blocks indefinitely due to Promise.race logic flaw

[akramcodez]

Description

Promise.race([exited, escalation]) resolves when escalation finishes. However, it then immediately calls await exited. Since the child process might not instantly die when receiving SIGKILL (or might be a zombie), the function hangs synchronously forever instead of gracefully continuing.

Environment

• macOS version: macOS 14.0
• Apple Silicon: M2
• Node version: v22.0.0
• Python version: 3.12
• Nanotune version: 1.7.0

Steps to Reproduce

1. Trigger a fast shutdown while a heavy server load is occurring.
2. The escalation promise resolves, but await exited stalls the shutdown.

Expected Behavior

The function should exit immediately after the SIGKILL is dispatched.

Actual Behavior

The function hangs indefinitely awaiting a process exit that may be delayed or stuck.

Logs/Screenshots

N/A

Additional Context

• I have searched existing issues to ensure this is not a duplicate
• I can reproduce this issue consistently
• This issue occurs with the latest version of nanotune