Add Contributor Covenant Code of Conduct

[werther41]

This document outlines the Contributor Covenant Code of Conduct, establishing standards for community behavior, enforcement responsibilities, and consequences for violations.

Pull Request

📝 Description

A clear and concise description of what this PR does.

🔗 Related Issue

Closes #(issue number)

🧪 Type of Change

• 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 not work as expected)
• Documentation update
• Performance improvement
• Code refactoring
• Security enhancement

🎯 Changes Made

• Change 1
• Change 2
• Change 3

🧪 Testing

• I have tested these changes locally
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have tested the changes in different browsers/environments

📸 Screenshots

If applicable, add screenshots to help explain your changes.

🔒 Security Checklist

• No hardcoded secrets or API keys
• No sensitive data in code or comments
• Proper input validation and sanitization
• No SQL injection vulnerabilities
• No XSS vulnerabilities
• Proper error handling without information disclosure
• Authentication and authorization checks
• Rate limiting considerations

📚 Documentation

• I have updated the README.md if needed
• I have updated the API documentation if needed
• I have added JSDoc comments for new functions
• I have updated the CHANGELOG.md if needed

🚀 Deployment

• These changes are backward compatible
• These changes don't require database migrations
• These changes don't require environment variable updates
• These changes don't break existing functionality

🔍 Code Quality

• My code follows the project's style guidelines
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works

📋 Additional Notes

Any additional information that reviewers should know.

🎯 Reviewers

@werther41 - Please review this PR

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