⚡ Bolt: optimize CLI execution performance

[google-labs-jules]

💡 What: Optimized the validation check for printable characters in the CLI.
🎯 Why: The original implementation used a generator expression with any(), which iterates over the string in Python. The new implementation uses the built-in str.isprintable() method, which is implemented in C and is significantly faster.
📊 Impact: Speed up the character validation check by approximately 15x.
🔬 Measurement: Benchmarked using timeit: any(not c.isprintable() for c in s) takes ~6.8µs, while not s.isprintable() takes ~0.45µs for a 100-character string.

---

PR created automatically by Jules for task 14538071657692550274 started by @amrabed

[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.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud