Today I expanded NihonGo with new learning flows for practice and review. On the backend, I added the dashboard recommendation feature, connecting lesson progress, quick stats, and recommendations so users can continue unfinished lessons or start the next suggested lesson.

On the frontend, I improved the Dashboard with modular cards for continuing learning, daily goals, recent activity, recommendations, and quick stats. I also built the Kana/Kanji Trainer page with filters, progress tracking, random practice, answer submission, and instant feedback.

I also implemented the Flashcards experience, including deck creation, card creation, due-card review, answer reveal, and progress tracking. Finally, I cleaned up page exports/routes and fixed integration bugs across auth, exercises, module details, and flashcard behavior.