improved and comprehensive CONTRIBUTING.md

[ajeebtech]

Summary

Significantly expanded the CONTRIBUTING.md file to provide comprehensive guidance for new and existing contributors.

Changes Made

• Added detailed Getting Started section with prerequisites and environment setup
• Created How to Contribute section covering bug reports, enhancements, and first contributions
• Expanded Coding Standards with TypeScript guidelines, formatting rules, and linting requirements
• Added comprehensive Testing Requirements section with examples and coverage expectations
• Included Commit Guidelines with Conventional Commits format and examples
• Added Documentation and Security sections
• Enhanced Community section with links to Discord, GitHub Discussions, and Twitter
• Improved existing sections (Branch Organization, Pull Request Process) with clearer formatting and examples
• Fixed typo in title ("Contrubution" → "Contributing")

Motivation

The previous CONTRIBUTING.md was sparse (58 lines) and lacked important information that would help new contributors get started. This update provides:

• Clear onboarding steps for new contributors
• Detailed coding standards matching our ESLint and Prettier configs
• Testing requirements and examples
• Better organization with table of contents
• Security and community guidelines

File Changes

• Modified: CONTRIBUTING.md (58 lines → 455 lines)

Checklist

• [x] Follows existing documentation style
• [x] Includes accurate technical information (versions, commands, configs)
• [x] Links to existing resources (README.md, CODE_OF_CONDUCT.md, SECURITY.md)
• [x] Provides actionable guidance for contributors
• [x] No code changes required