Enable Builder Toolkit playground links

[ihsraham]

Summary

• Enables the Nitrolite Playground card in Builder Toolkit with production and sandbox links.
• Enables the Faucet App card by pointing builders to the integrated sandbox playground faucet for sandbox YUSD.
• Leaves Yellow SDK MCP greyed out as upcoming.

Validation

• vale --minAlertLevel=error docs/nitrolite/builder-toolkit.mdx
• git diff --check
• npm run build

Summary by CodeRabbit

• Documentation
  • Activated Nitrolite Playground in the builder toolkit with direct links to production and sandbox environments.
  • Activated Faucet App with a functional link to the sandbox faucet for test network funding.
  • Updated tool availability status in the documentation to reflect currently accessible developer resources.

[coderabbitai]

📝 Walkthrough

Walkthrough

Documentation update that activates two disabled toolkit cards in the Nitrolite builder toolkit. The Nitrolite Playground card now provides direct links to production and sandbox environments, while the Faucet App card now offers a sandbox funding link.

Changes

Toolkit Cards Activation

Layer / File(s)	Summary
Enable toolkit cards with external links docs/nitrolite/builder-toolkit.mdx	Replaced disabled "Coming soon" and "Deployment pending" placeholder cards with enabled versions. Nitrolite Playground now includes "Browser tooling" eyebrow and production/sandbox links. Faucet App now includes "Sandbox funding" eyebrow and active sandbox faucet link.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• layer-3/docs#169: Both PRs edit the same toolkit cards section; #169 adds/enables Cerebro REPL and reorganizes cards, while this PR updates Nitrolite Playground and Faucet App from disabled to enabled state.

Suggested reviewers

• dpatsora
• nksazonov
• philanton

Poem

🐰 Two tools now dance in the light,
Playground links gleaming bright,
Faucet flows freely at last,
From "coming soon" shadows of past,
Builder's toolkit, ready to flight! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title directly and accurately describes the main change: enabling playground links for the Builder Toolkit cards (Nitrolite Playground and Faucet App).
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/enable-builder-toolkit-playground

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[coderabbitai]

Actionable comments posted: 0