test(CustomizeCTA): add TypeScript compiler validation test suite

[kanishka-2007-tech]

Description

This PR introduces a dedicated TypeScript compiler validation test suite for the CustomizeCTA component to ensure its public type contract remains stable and protected against future regressions.

Changes Made

Added app/components/CustomizeCTA.type-compiler.test.tsx.
Verified that CustomizeCTA exports a valid function component.
Added compile-time validation for the component's ReactElement return type.
Confirmed the component has no required parameters.
Ensured the component can be invoked without props.
Added a function signature stability check using expectTypeOf.

Fixes #6827

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 started 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.

[vercel]

@kanishka-2007-tech is attempting to deploy a commit to the jhasourav07's projects Team on Vercel.

A member of the Team first needs to authorize it.

[github-actions]

📦 Next.js Bundle Size Report (Gzipped Sizes)

✨ No significant bundle size changes detected.

📊 Summary of Totals

Category	PR Size	Base Size	Difference
Total JS	3958.92 KB	3958.92 KB	0 B
Total CSS	327.67 KB	327.67 KB	0 B

[Aamod007]

Great work adding the TypeScript compiler validation test suite for the CustomizeCTA component. It helps ensure the component props are typed correctly. However, the Vercel check is failing. Please resolve the issues and rerun the CI pipeline.

[Aamod007]

Upon re-evaluation, I realized I previously misinterpreted the Vercel deployment failure as an issue with this PR. The Vercel build failure seems unrelated to the changes introduced here, so I will ignore it moving forward. The rest of the PR looks good, so I'm approving it!

[github-actions]

🎉 Congratulations @kanishka-2007-tech! Your PR has been successfully merged. 🚀

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