Added Code Review Guide for issue #429

common-docs/code-review-guide.md

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+Code Review Guide
+🧠 Purpose
+
+The goal of code reviews is to ensure high-quality, readable, and maintainable code while helping trainees learn best practices. A good review focuses on collaboration and learning — not criticism.
+
+💬 How to Review Code
+
+Read the description first
+Understand what the code is trying to achieve (feature, bug fix, improvement).
+
+Run the code (if possible)
+Test the feature locally to confirm it works as described.
+
+Check for clarity and readability
+
+Are variable and function names meaningful?
+
+Is the code easy to follow?
+
+Are there comments where needed?
+
+Look for best practices
+
+Consistent indentation and formatting.
+
+Avoid repetition — could something be reused?
+
+Follows project naming and file structure conventions.
+
+Check for potential issues
+
+Any security or performance risks?
+
+Unnecessary console logs or unused code?
+
+Proper error handling?
+
+Give constructive feedback
+
+Be kind and specific.
+
+Suggest solutions, not just point out problems.
+
+Use a positive tone like:
+
+“This works well! Maybe extract this logic into a helper function to improve reusability.”
+
+🧩 Example Review Comment
+
+✅ Great job on implementing the feature!
+💡 You could use Array.map() here instead of a loop to make the code cleaner.
+🧹 Remember to remove debug logs before merging.
+
+📎 Related Guides
+
+- [CodeYourFuture Reviewing Guide](https://programming.codeyourfuture.io/guides/reviewing/)
+- [Review Checklist](https://programming.codeyourfuture.io/guides/reviewing/checklist/)
+
+📚 Additional Resources
+
+CodeYourFuture Review Guidelines