Grader v2.0.0

v2.0.0 — Multi-Assignment System (Major)

⚠️ Breaking change: the old top-level Data/, PDFs/ and output/ folders are no longer used. Each assignment now lives in its own Assignments/<name>/ directory. Move existing data into an assignment folder if needed.

🎉 Highlights

• Per-assignment folders: Assignments/<name>/ with its own Data/, PDFs/, output/.
• Web selection screen: pick or create an assignment in the browser; switch anytime via the 🔁 button.
• In-browser setup: upload or edit rubric.csv / students.csv from the select page.
• Bulk PDF import: upload a zip (eLearn) or many PDFs; zip entries are renamed after their parent folder.

✨ New Features

• assignments.json registry — no folder scanning, stray folders ignored
• Created/Modified timestamps with Name / Created / Modified sorting (asc/desc, remembered)
• Natural sorting
• Search/filter, last-selected highlight ⭐, duplicate-name guard
• Shared light/dark theme persisted across select + grading pages