chore(homepage): remove Playground from navbar and drop PR preview

[Agilulfo1820]

Summary

• Remove the Playground link (and unused Link import / PLAYGROUND_URL constant) from the homepage header navbar
• Delete .github/workflows/deploy-playground-preview.yaml so PRs no longer spin up a playground preview environment
• Bump @vechain/vechain-kit to 2.10.1

The HeroSection still surfaces the Playground; only the navbar entry is removed. Existing preview cleanup keeps working since destroy-preview-env.yaml wipes the whole branch S3 folder on PR close.

Test plan

• Verify the homepage header no longer renders a Playground link on desktop
• Confirm no deploy-playground-preview workflow runs on this PR

🤖 Generated with Claude Code

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 5056c404-3906-44de-b805-0a166825e854

📥 Commits

Reviewing files that changed from the base of the PR and between 8a3ffaf and 238891c.

📒 Files selected for processing (3)

• .github/workflows/deploy-playground-preview.yaml
• examples/homepage/src/app/components/layout/Header/Header.tsx
• packages/vechain-kit/package.json

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/remove-playground-from-homepage-navbar-and-pr-preview

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[github-actions]

🚀 Playground preview deployed!

Preview URL: https://preview.vechainkit.vechain.org/choreremove-playground-from-homepage-navbar-and-pr-preview/playground

[github-actions]

🚀 Preview environment deployed!

Preview URL: https://preview.vechainkit.vechain.org/choreremove-playground-from-homepage-navbar-and-pr-preview

[github-actions]

Size Change: 0 B

Total Size: 8.84 MB

ℹ️ View Unchanged

Filename	Size
packages/vechain-kit/dist/assets	4.1 kB
packages/vechain-kit/dist/assets-C0RHiZ9a.mjs	51.4 kB
packages/vechain-kit/dist/assets-C0RHiZ9a.mjs.map	74.6 kB
packages/vechain-kit/dist/assets-CZs6EVH8.cjs	58.9 kB
packages/vechain-kit/dist/assets-CZs6EVH8.cjs.map	76.1 kB
packages/vechain-kit/dist/assets/index.cjs	716 B
packages/vechain-kit/dist/assets/index.d.cts	973 B
packages/vechain-kit/dist/assets/index.d.mts	973 B
packages/vechain-kit/dist/assets/index.mjs	718 B
packages/vechain-kit/dist/index-_eL0YL8f.d.mts	185 kB
packages/vechain-kit/dist/index-_eL0YL8f.d.mts.map	49.2 kB
packages/vechain-kit/dist/index-BYfc-9J5.d.mts	5.63 kB
packages/vechain-kit/dist/index-BYfc-9J5.d.mts.map	2.99 kB
packages/vechain-kit/dist/index-C8Uj8ple.d.cts	5.63 kB
packages/vechain-kit/dist/index-C8Uj8ple.d.cts.map	2.99 kB
packages/vechain-kit/dist/index-CS66rxK3.d.cts	185 kB
packages/vechain-kit/dist/index-CS66rxK3.d.cts.map	50.3 kB
packages/vechain-kit/dist/index.cjs	1.14 MB
packages/vechain-kit/dist/index.cjs.map	2.83 MB
packages/vechain-kit/dist/index.d.cts	24.5 kB
packages/vechain-kit/dist/index.d.mts	24.5 kB
packages/vechain-kit/dist/index.mjs	1.1 MB
packages/vechain-kit/dist/index.mjs.map	2.77 MB
packages/vechain-kit/dist/utils	4.1 kB
packages/vechain-kit/dist/utils-C4gc1L9t.cjs	27.4 kB
packages/vechain-kit/dist/utils-C4gc1L9t.cjs.map	68.2 kB
packages/vechain-kit/dist/utils-DPIscp9_.mjs	22.2 kB
packages/vechain-kit/dist/utils-DPIscp9_.mjs.map	67.5 kB
packages/vechain-kit/dist/utils/index.cjs	2.02 kB
packages/vechain-kit/dist/utils/index.d.cts	3.1 kB
packages/vechain-kit/dist/utils/index.d.mts	3.1 kB
packages/vechain-kit/dist/utils/index.mjs	2.04 kB

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