Folder structure

Two apps, each with its own layout. The backend groups by technical role — config/, routes/, controllers/, models/, middleware/, utils/ — with the entry file at the root. The frontend groups by UI role — pages/, components/, services/, store/, hooks/, lib/, utils/ — with App.jsx and main.jsx at the src/ root.

backend/
├── index.js        # entry: app, routes, socket, listen
├── config/         # database, redis, cloudinary
├── routes/         # eight route modules
├── controllers/    # eight matching controllers
├── models/         # six Mongoose schemas
├── middleware/     # auth guard, rate limits, uploads
├── utils/          # socket server
└── uploads/        # local upload fallback (committed files exist here)

frontend/
├── index.html      # shell
└── src/
    ├── App.jsx         # route table
    ├── main.jsx        # bootstrap
    ├── pages/          # route-level screens
    ├── components/     # ui, layout, posts, jobs, notifications
    ├── services/       # apiClient plus one module per area
    ├── store/          # store plus nine slices
    ├── hooks/          # swipe gesture
    ├── lib/            # class merge helper
    └── utils/          # login redirect helper

Uploads and helper scripts (fix_db.js, test-cloudinary.js, dummy.txt) exist in the backend folder without being part of the architecture — the backend pages name them but do not document their contents.

Sources: README.md, backend/README.md, frontend/README.md (documented at commit cdef8af)