File management groundwork

frontend/package.json

@@ -7,6 +7,7 @@
     "@emotion/react": "^11.14.0",
     "@emotion/styled": "^11.14.0",
     "@mantine/core": "^8.0.1",
+    "@mantine/dropzone": "^8.0.1",
     "@mantine/hooks": "^8.0.1",
     "@mui/icons-material": "^7.1.0",
     "@mui/material": "^7.1.0",
@@ -15,6 +16,7 @@
     "@testing-library/react": "^16.3.0",
     "@testing-library/user-event": "^13.5.0",
     "axios": "^1.9.0",
+    "pdfjs-dist": "^3.11.174",
     "react": "^19.1.0",
     "react-dom": "^19.1.0",
     "react-router-dom": "^7.6.0",