error message in generate student report, gate quiz records on final save, randomize question bank, UI changes

quiz/bank wipe option, LLM answer check

question generation feature, date selection, changes to UI login page and icons

UI redesign to light theme, question bank creation, report redesign, info tooltips, and icon labels

Redesign ClassLens v2: 3-step exam analysis workflow

🔧 Fix OAuth: auto-detect redirect_uri + sync all ClassLens updates

🚀 ExamInsight: AI-powered exam analysis for teachers

Add unmanged sample with a minimal backend (#98)