⚡ Bolt: Pre-calculate Search Index and Formatting

[MrAlokTech]

💡 What: Pre-calculates derived properties (_searchStr, _formattedDate, and _isNew) once during data load (prepareSearchIndex) rather than calculating them dynamically inside renderPDFs and createPDFCard on every keystroke.

🎯 Why: To reduce CPU overhead, eliminate redundant Date object instantiations, and prevent unnecessary garbage collection during the heavily-used search filtering and list rendering operations. This creates a measurably faster and more responsive search experience.

📊 Impact: Significantly reduces the computational cost of renderPDFs(). O(n) Date parsing and string formatting operations are removed from the render loop. Filtering now relies on early-return equality checks and a single string inclusion check.

🔬 Measurement: Added Node.js test scripts tests/test_prepareSearchIndex.js and tests/test_render_pdfs.js to measure and verify correct index creation and filtering behavior. Also successfully ran Playwright verification with mock data.

---

PR created automatically by Jules for task 8563615953861160090 started by @MrAlokTech

[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.

[cloudflare-workers-and-pages]

Deploying classnotes with    Cloudflare Pages

Latest commit:	6e3900c
Status:	✅  Deploy successful!
Preview URL:	https://dc78480f.classnotes.pages.dev
Branch Preview URL:	https://bolt-performance-precalculat.classnotes.pages.dev

View logs