⚡ Bolt: Optimize timeout validation with integer fast-path

[ManupaKDU]

💡 What: Added an integer fast-path (type(timeout) is int) for validating the timeout parameter in testping1.py, bypassing the heavy try...except block, string length checking, and int() casting when an integer is passed (which is the default). Also removed a duplicated string validation block.
🎯 Why: The default timeout is an integer 1. By skipping string checks and type conversion on the default path, we shave off CPU overhead during high-concurrency network scanning.
📊 Impact: Reduces validation overhead on the hot-path. Benchmarking shows type(timeout) is int + integer bounds checking is roughly ~3x faster than the original isinstance string check followed by a try...except int() block.
🔬 Measurement: Run python3 test_perf.py with both code blocks to compare overhead. Verified no functional regressions by running python3 -m unittest test_testping1.py.

---

PR created automatically by Jules for task 6925967411009573365 started by @ManupaKDU

[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.