Refactor file upload handling to use Supabase Storage instead of Uplo…

[Loukass23]

…adThing; update related configurations and documentation. Add storage initialization script and ensure bucket management functions are in place.

Pull Request

📝 Description

What does this PR do?

🔄 Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 📚 Documentation update
• 🎨 Style/UI changes
• ♻️ Code refactoring (no functional changes)
• ⚡ Performance improvements
• 🧪 Test additions or updates
• 🔧 Configuration changes
• 🏗️ Build system changes

📸 Screenshots/Videos

🤔 Questions and Concerns

Known Issues or Limitations

📚 Additional Context

🙏 Thank You!

Thank you for contributing to CODAC! Your effort helps make this platform better for the entire Code Academy Berlin community.

First-time contributor?

Welcome! 🎉 Don't worry if you receive feedback - it's all part of the learning process. We're here to help you succeed!

Need help?

• Check our Contributing Guide
• Ask questions in this PR - we're happy to help
• Join our community discussions for real-time support

Happy coding! 🚀

[github-actions]

📝 Pull Request Summary

Files changed: 15
Lines added: 515
Lines deleted: 282

🔌 API/Backend Changes

• Ensure proper error handling is implemented
• Verify input validation and sanitization
• Check that database operations are optimized

📚 Documentation Changes

• Thank you for improving our documentation!
• Please check for typos and grammar
• Ensure examples are up to date

✅ Review Checklist

For the Author:

• Code follows project conventions and style guide
• Self-review completed
• Tests added/updated for new functionality
• Documentation updated if needed
• No console.log or debug code left behind
• Error handling implemented appropriately

For Reviewers:

• Code is clean and maintainable
• Logic is sound and efficient
• Security considerations addressed
• Performance impact considered
• Browser compatibility maintained
• Mobile responsiveness verified

🎯 Testing Instructions

1. Clone and setup:

   git checkout 45-feature-mv-s3-bucket-on-supabase
   pnpm install
   pnpm dev

2. Test the changes:

   • Verify the feature works as expected
   • Test edge cases and error scenarios
   • Check console for errors
   • Test on different screen sizes

🤝 For New Contributors

• Don't worry if you receive feedback - it's part of the learning process!
• Feel free to ask questions if something is unclear
• We're here to help you succeed and learn
• Consider joining our Discord/Slack for real-time help

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