Add --spawn feature to livetools

[Kim2091]

Add --spawn mode to livetools

Summary

• Adds --spawn flag to livetools attach that launches an executable with Frida instead of attaching to an already-running process. The target starts suspended, Frida instruments it, then resumes — catching all initialization code that would be missed with late-attach.
• Daemon stderr is now captured to .daemon.log and surfaced on startup failure, making attach issues easier to diagnose.
• Cleanup is guarded against double-execution, and spawn mode ensures the target process is always resumed even if script loading fails (no more orphaned suspended processes).

This is particularly useful for games that encounter issues while initializing, and can also just be useful for automatic RE tasks.

Usage

python -m livetools attach "C:/Games/game.exe" --spawn