Small Improvements

Spent some more time improving DeepRead today.I wasn’t adding any major features, but I cleaned up the project and fixed a few small issues that I noticed while testing.

I also improved the AI fallback logic a bit and organized some backend files to make the code easier to maintain.

I tested the upload, summary and flashcard flow a few more times to make sure everything works smoothly before wrapping up the project.
Nothing huge today, just polishing the project and making it more stable. There are still a few ideas I want to work on later, but I’m happy with where DeepRead is now