🛡️ Sentinel: [CRITICAL/HIGH] Fix command injection

[acebytes]

🚨 Severity: CRITICAL/HIGH
💡 Vulnerability: Potential command injection via shell wrappers (/bin/bash -c) when probing paths and running cache cleanup operations (like docker system prune and xcrun simctl).
🎯 Impact: Attackers or malware could potentially execute arbitrary code by manipulating local environmental setups or abusing paths that are substituted inside the raw shell string context.
🔧 Fix: Eradicated reliance on /bin/bash wrappers. Refactored shell pipelines (like head -1 | sed) directly into native Swift String manipulations. Structured all process commands to utilize [[String]] parameter array steps routed securely via URL(fileURLWithPath: "/usr/bin/env"). Replicated 2>&1 natively by assigning a shared Pipe() instance.
✅ Verification: Review code modifications ensuring cleanSteps natively executes shell operations safely via Process without reliance on shell execution limits. Tested logic compiles correctly without regressions.

---

PR created automatically by Jules for task 7542463943770795057 started by @acebytes

[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.