🔒 Fix Unsafe Output of Untrusted Input in Bash Hook

[sstklen]

🎯 What: Fixed an issue in hooks/pre-bash-guard.sh where echo "$CMD" was used.
⚠️ Risk: If the $CMD input began with -n or -e, echo might interpret it as a flag instead of printing it, potentially bypassing the guard for dangerous commands or causing unintended side effects.
🛡️ Solution: Replaced echo "$CMD" with printf '%s\n' "$CMD", ensuring the variable is safely output without any interpretation as a command line flag.

---

PR created automatically by Jules for task 10905106132030780785 started by @sstklen

[google-labs-jules]

👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!

New to Jules? Learn more at jules.google/docs.

---

For security, I will only act on instructions from the user who triggered this task.