⚡ Bolt: Memoize expensive deck grid calculations

[google-labs-jules]

💡 What: Extracted the 4-deck grid mapping logic in JobStatus.tsx into a useMemo block.
🎯 Why: The original implementation performed multiple expensive array operations (.find, .filter, Object.entries) inline within the mapping loop for every render cycle. This meant fine-grained state updates (like hovering) triggered unneeded processing.
📊 Impact: Significantly reduces computational overhead on re-renders, dropping the render complexity of the list items from O(N) inline processing to O(1) object reads.
🔬 Measurement: Verified by ensuring linting, builds (vite build), and unit tests all pass cleanly with no UI functional regressions.

---

PR created automatically by Jules for task 9380442517329123262 started by @TytaniumDev

[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.