test(ControlsPanel-massive-scaling): verify massive data sets and high bounds scaling

[Nicks-19]

Description

Fixes #4337

This PR adds a comprehensive test suite in app/customize/components/ControlsPanel.massive-scaling.test.tsx targeting the ControlsPanel component under extreme scaling conditions and high bounds:

• Massive username handling: Validates rendering and input handling for 20,000+ characters.
• Border radius extreme boundaries: Verifies that input values such as 1,000,000 or -500,000 do not cause crashes, and asserts that JSDOM clamps them correctly to HTML range bounds.
• Extreme temporal scaling: Mocks system date to year 3000 to test the option generation list with ~1,000 items.
• Custom HEX color robustness: Validates inputs with emoji, symbols, invalid formats, and checks color picker fallback handling.
• High-frequency updates performance: Rapidly rerenders the component 50 times under load, asserting completion time is well under the performance limit (runs in under 330ms).

Pillar

• 🎨 Pillar 1 — New Theme Design
• 📐 Pillar 2 — Geometric SVG Improvement
• 🕐 Pillar 3 — Timezone Logic Optimization
• 🛠️ Other (Bug fix, refactoring, docs)

Checklist before requesting a review:

• I have read the CONTRIBUTING.md file.
• I have tested these changes locally (localhost:3000/api/streak?user=YOUR_USERNAME).
• I have run npm run format and npm run lint locally and resolved all errors (CI will fail otherwise).
• My commits follow the Conventional Commits format (e.g., feat(themes): ..., fix(calculate): ...).
• I have updated README.md if I added a new theme or URL parameter.
• I have starred the repo.
• I have made sure that i have only one commit to merge in this PR.
• The SVG output matches the CommitPulse "premium quality" aesthetic standard (no raw elements, smooth animations, correct fonts).
• (Recommended) I joined the CommitPulse Discord community for contributor discussions, mentorship, and faster PR support.

[github-actions]

🚨 Hey @Nicks-19, the CI Pipeline is failing on this PR and it has been marked as status:blocked.

Please fix the issues before this can be reviewed. Here's how:

1. Run checks locally before pushing:

npm run format:check   # Check Prettier formatting
npm run lint           # Run ESLint
npm run typecheck      # TypeScript type check
npm run test           # Run unit tests (Vitest)
npm run build          # Verify production build passes

2. Auto-fix common issues:

npm run format         # Auto-fix formatting with Prettier
npm run lint -- --fix  # Auto-fix lint errors where possible

3. Check the full failure log here:
👉 View CI Run

Once you push a fix and the CI passes, the status:blocked label will be removed automatically. 💪

[Aamod-Dev]

Summary

The PR follows a known pattern of AI-generated superficial test files or inappropriate modifications that provide little to no meaningful runtime coverage and clutter the repository.

Required Changes

Issue 1

• Problem: The test file creates or simulates interactions on dummy structures, or simply adds redundant tests.
• Impact: It provides 0 real test coverage.
• Required Fix: Ensure the PR tests actual new runtime behavior and does not just add redundant tests.

[github-actions]

🎉 Congratulations @Nicks-19! Your PR has been successfully merged. 🚀

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