Inspector: instant shell + animated loader, fix scrollbars and dark hint color

Redesign inspector: question cards instead of table rows

feat: show answer and hint text inline in question table

feat: add live search by id/text + filter chips (type, difficulty, bloom, status, answer, duplicates)

chore: remove who-saved user label (shared credentials make it meaningless)

feat: group questions by save-batch minute, add user label, redesign inspector page

chore: ignore pptx files and update gitignore

feat: add Latest Saved inspector page + OCR fallback + Docker setup

feat: upload question diagrams as questionFileId before batch save

Add dark mode toggle with system preference detection

Add PDF picker UI with server-side persistence

Initial commit for the EduVerse question generator Python app.