feat(Illustration): ✨ Add CubeIllustration component

[zippyzow]

Introduced a new CubeIllustration React component and exported it from the illustrations package index for use in mono.

Overview

PR Checklist

• Related to designs: https://www.figma.com/design/r2aNQ3rxnclFQC32Cup33a/Mat-Design-25.6?node-id=910-17542&m=dev
• Related to JIRA ticket: LIVE-276
• I have run this code to verify it works
• This PR includes unit tests for the code change
• This PR includes testing instructions tests for the code change
• The alpha package of this PR is passing end-to-end tests in all relevant Codecademy repositories

Testing Instructions

Don't make me tap the sign.

1. Go to storybook illustrations
2. See new CubeIllustration
3. Review mono and monolith PRs linked below which have integrated these gamut changes
4. Finish and do a celebratory dance

PR Links and Envs

Repository	PR Link
Monolith	Monolith PR
Mono	Mono PR

[nx-cloud]

View your CI Pipeline Execution ↗ for commit 91f22ca

---

☁️ Nx Cloud last updated this comment at 2026-01-08 21:38:00 UTC

[codecademydev]

📬 Published Alpha Packages:

@codecademy/[email protected]
@codecademy/[email protected]
@codecademy/[email protected]

[github-actions]

🚀 Styleguide deploy preview ready!

Preview URL: https://6960245a4b2b858e3e03f58c--gamut-preview.netlify.app
Deploy Logs: https://app.netlify.com/projects/gamut-preview/deploys/6960245a4b2b858e3e03f58c