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

label image questions in report, warn on incomplete download, changes to report aesthetics

count quizzes only once saved (not on upload), remove preview emoji

fix student records, dashboard illustration changed, report generation fixed, and UI changes

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

rebuild the pdf parsing logic

Refactor to add answer grid & assoicate llm parsing

Simplify: send raw data to LLM, let user's prompt control interpretation

Add final prompt preview tab with real student data substitution

Add data preview modal before report generation