[DOCS] Add CONTRIBUTING.md with setup guide, branch naming, and PR checklist

[Priyanshu-byte-coder]

Problem Statement

There is no CONTRIBUTING.md file. New contributors (especially GSSoC participants) have no documented process for: forking, branch naming, commit message style, running the project locally, or what to include in a PR. This leads to inconsistent PRs and repeated review feedback.

Proposed Solution

Create CONTRIBUTING.md at the repo root with:

1. Local setup — clone, install, env vars, npm run dev
2. Branch naming — feat/<description>, fix/<description>, docs/<description>
3. Commit messages — Conventional Commits format
4. PR checklist — runs without errors, no console warnings, screenshots for UI changes
5. Code style — ESLint/Prettier config, no unused imports
6. Issue claiming — comment on issue before starting work

Acceptance Criteria

• CONTRIBUTING.md created at repo root
• Local setup steps work end-to-end for a fresh clone
• Branch naming convention documented
• PR checklist included
• Link from README to CONTRIBUTING.md

Additional Context

This is especially important for GSSoC — most participants are making their first open source contribution. Clear guidelines reduce maintainer review burden significantly.

[indresh404]

Hi! I'd like to work on this issue.

[github-actions]

@indresh404 You already have 2 open issue(s) assigned. Complete those first before picking up more.

[tmdeveloper007]

Proposed Implementation Plan

Here is a detailed, technically solid, step-by-step approach to solve this issue:

1. Create CONTRIBUTING.md in the root directory.
2. Detail onboarding guides: environment setup, fork/clone instructions, branch names (feat/, fix/, docs/), Conventional Commit standards, PR check requirements (passing linters/tsc checks), and code styling rules.
3. Link this contribution guide directly from the central README.md header.

I would love to work on this issue and implement the proposed solution. Could you please assign this issue to me? Thank you!

[srinidhi-2006-bit]

/assign

[srinidhi-2006-bit]

Hi @Priyanshu-byte-coder, I would like to work on #969 ([DOCS] Add CONTRIBUTING.md with setup guide, branch naming, and PR checklist).

I’m interested in contributing documentation improvements and can prepare a clean and structured CONTRIBUTING guide for the project. Kindly assign this issue to me.