Refine Internship Web Projects

I have just wrapped up four small projects for my CodeOrbit internship—a to-do list, a simple calculator, an AI-powered résumé-analyzer website, and a browser-based number-guessing game—and I’d like a fresh, expert set of eyes on them before I add them to my portfolio. Each project already works, but I want the codebase cleaned up, any obvious bugs squashed, and the user experience polished so they feel production-ready. If you spot easy wins, feel free to implement them (think persisting tasks in the to-do list, tightening the calculator logic, or adding a lightweight score tracker to the guessing game). For the AI résumé analyzer, I’d love guidance on improving model accuracy and overall flow without overcomplicating the stack. Deliverables • Refactored, well-commented source code pushed to my existing GitHub repository for all four apps • A concise Markdown report summarising what you changed, why you changed it, and any next steps you’d recommend • Deployment instructions (or simple scripts) so I can host the JavaScript projects on GitHub Pages and the résumé analyzer on a basic cloud service Acceptance criteria: all projects build and run error-free, new touches work as intended, and the README files clearly explain setup, usage, and future improvements. If you’re comfortable with JavaScript, React, Python/Flask, and Git, I’m looking forward to collaborating with you.