feat(ci): add CodeRabbit configuration for automated code reviews

[tyaga001]

What kind of change does this PR introduce?

Feature - Adding CodeRabbit automated code review configuration

Why was this change needed?

This change implements automated code review practices to improve code quality and development workflow in your NX monorepo.

CodeRabbit will help:

• enforce consistent coding standards across the TypeScript/React/NestJS codebase
• automate repetitive code review tasks
• ensure best practices are followed in the monorepo structure
• catch potential issues early in the development cycle
• Streamline the review process

you can check the longer explanation here.

Some sample PRs:

sartography/spiff-arena#1233 (comment)
kmesiab/equilibria#1 (comment)
kamiazya/web-csv-toolbox#60 (comment)
openreplay/openreplay#1858 (comment)
ls1intum/Artemis#8037 (comment)

Other information:

This implementation:

• Sets up path-specific review rules optimized for the monorepo structure
• Configures essential code quality tools (Biome, ESLint, Gitleaks)
• Establishes automated review workflows for main/develop/staging branches
• Implements knowledge base learning from repository context

Checklist:

• I have read the CONTRIBUTING guide.
• I checked that there were not similar issues or PRs already open for this.
• This PR fixes just ONE issue (adding CodeRabbit configuration only)

[vercel]

@tyaga001 is attempting to deploy a commit to the Listinai Team on Vercel.

A member of the Team first needs to authorize it.

[jamesread]

Hey @tyaga001 , did you discuss this with anyone before, or are you just personally a fan of CodeRabbit?

I don't necessarily mind if it's just adding comments, but it's probably not the highest priority for this project right now. It would be better as well to have CI tools and linters that can also be run offline, before the PR is raised, as well.

[tyaga001]

hey @jamesread I discussed with @nevo-david before raising the PR, and it's very easy and fast to setup coderabbitai

Quick Setup:

1. Sign up at coderabbit.ai with GitHub
2. Add your public GitHub repo
3. That's it. CodeRabbit will start reviewing PRs automatically