🔒 Fix command injection vulnerability in open_url

[n24q02m]

🎯 What: Fixed a command injection vulnerability in apps/tauri/src/commands.rs where user-supplied URLs were passed directly to cmd /C start on Windows without proper sanitization.
⚠️ Risk: Exploiting this vulnerability could allow attackers to execute arbitrary commands on a user's machine by crafting a malicious URL.
🛡️ Solution: Replaced the unsafe std::process::Command implementation with Tauri's built-in tauri_plugin_shell::ShellExt::open method, which safely handles URL opening across all platforms. The fix removes platform-specific code and uses the secure, recommended API. Verified code correctness manually as CI lacks GUI dependencies.

---

PR created automatically by Jules for task 10833759017831339112 started by @n24q02m

[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.

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

None