docs: add local development guide and env setup instructions

[KGFCH2]

What changed

• Updated README.md
• Added local development setup details
• Documented required environment variables and startup commands

Why

This reduces onboarding friction and provides clear guidance for local testing.

Testing

• Follow the documented steps on a clean checkout
• Confirm install and local startup commands match repository behavior

Checklist

• README includes local development section
• Env setup steps are complete
• Commands are correct

Closes #27

[vercel]

@KGFCH2 is attempting to deploy a commit to the Harsh Yadav's projects Team on Vercel.

A member of the Team first needs to authorize it.

[coderabbitai]

Warning

Review limit reached

@KGFCH2, we couldn't start this review because you've reached your PR review rate limit.

More reviews will be available in 54 minutes and 26 seconds. Learn how PR review limits work.

Your organization has run out of usage credits. Purchase more in the billing tab.

⌛ How to resolve this issue?

After more reviews become available, a review can be triggered using the @coderabbitai review command as a PR comment. Alternatively, push new commits to this PR.

We recommend that you space out your commits to avoid hitting the rate limit.

🚦 How do rate limits work?

CodeRabbit enforces hourly rate limits for each developer per organization.

Our paid plans include higher PR review limits than trial, open-source, and free plans. In all cases, reviews become available again over time. During sustained high-volume PR review activity, CodeRabbit may temporarily slow when the next review becomes available.

Please see our Fair Usage Limits Policy for further information.

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 609a2885-b556-40e3-bd7e-fc65c6481ccd

📥 Commits

Reviewing files that changed from the base of the PR and between dcfb7ee and a236b53.

📒 Files selected for processing (1)

• README.md

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}