docs: add npm link to contributor setup

[WuKongAI-CMU]

Summary

• add the missing npm link step to the contributor setup flow
• explain that it puts the local nemoclaw CLI on the developer PATH

Testing

• not run (docs-only change)

Closes #989

Summary by CodeRabbit

• Documentation
  • Updated "Getting Started" instructions to include an npm link step for local CLI development setup.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 5c269c1 and 9f8251b.

📒 Files selected for processing (1)

• CONTRIBUTING.md

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📝 Walkthrough

Walkthrough

Updated CONTRIBUTING.md to include the npm link step after installing root dependencies, ensuring developers can access the local nemoclaw CLI binary on their PATH during development. This resolves the missing setup instruction that previously caused "command not found" errors when attempting to run the CLI.

Changes

Cohort / File(s)	Summary
Documentation CONTRIBUTING.md	Added npm link step to developer setup instructions after npm install at repo root to register the nemoclaw CLI binary globally, resolving the broken developer setup path.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 A link was missing, oh what a shame!
The CLI could not find its name.
But now with npm link in place,
Developers run with joy and grace! 🚀

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'docs: add npm link to contributor setup' clearly and concisely summarizes the main change—adding npm link to documentation.
Linked Issues check	✅ Passed	The PR directly addresses issue #989 by adding the npm link step to CONTRIBUTING.md, resolving the missing setup documentation that caused nemoclaw CLI to be unavailable.
Out of Scope Changes check	✅ Passed	The changes are limited to updating CONTRIBUTING.md with the npm link step, which is entirely in scope and aligned with the linked issue requirements.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

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[WuKongAI-CMU]

Addresses #989 by adding the missing npm link step to the contributor setup flow so the local nemoclaw CLI is available on PATH during development.

@coderabbitai review

[coderabbitai]

@WuKongAI-CMU Sure! I'll review the changes in this PR now.

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