Convert Lovable Reader to Flutter

I have already built a basic reading app with Lovable and it works well, but I now need it rebuilt in Flutter so I can publish a native-feeling Android version and keep future maintenance in one codebase.

The current Lovable build lets users browse a catalogue, open a text file or chapter, and read it—nothing fancy, just a clean, page-by-page reading experience. I want that exact behaviour reproduced first. After that, I’m open to suggestions for improvements; I haven’t decided whether extra features such as bookmarking, highlighting or night-mode should make it into this first release, so your input on effort versus benefit will help me decide.

Deliverables
• Complete Flutter source code organised for Android & iOS
• Help setup Android Studio for generating APK and publishing app
• Brief README covering build steps, key packages used and how to add future features

Please keep the UI consistent with the existing Lovable version (I’ll share screenshots and the live APK) but follow Flutter best practices so it’s easy for another developer to pick up later. If you’ve migrated projects like this before, tell me how you normally map Lovable components to Flutter widgets and any libraries you rely on for text rendering or state management.