readme file updation

[Ashrithhn]

Issue
Closes #33

Description
Added a Frontend Setup section to the root README with prerequisites (Node.js/npm), install/run steps, environment variable note, and the local dev server URL, plus a link to the frontend README. This documents how to run the frontend locally for contributors.

Type of Change

• Documentation update
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Performance improvement
• Refactoring
• Security update

How Has This Been Tested?

Please describe how you've tested these changes:

• Manual testing
• Unit tests
• Integration tests
• Other (please describe):

Checklist

Before submitting, please ensure:

• I have read the CONTRIBUTING.md guidelines
• My code follows the project's code style and conventions
• I have made corresponding changes to the documentation if needed
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests passed locally
• My branch name follows the pattern: feature/issue-<num>-<description> or fix/issue-<num>-<description>
• My commits are well-formatted with descriptive messages (e.g., feat(issue-45): add new feature)
• This PR targets the develop branch (not main - only repository owners can merge to main)
• I assigned myself to the related issue using /assign @username in the issue discussion (NOT in this PR)

HI @atithi4dev please review my PR and merge

[github-actions]

⏰ PR Update Needed

This PR has been waiting for 14 days. Please:

• Address review comments if any
• Rebase on latest test branch
• Resolve any conflicts
• Push updates

If this PR is no longer needed, please close it. Thank you!

[github-actions]

⏰ PR Update Needed

This PR has been waiting for 14 days. Please:

• Address review comments if any
• Rebase on latest test branch
• Resolve any conflicts
• Push updates

If this PR is no longer needed, please close it. Thank you!