refactor: consolidate backend/frontend, remove api/web duplicates

- backend/ kept as canonical, api/ features merged (EBook, ReadingProgress, ReadingSettings)
- frontend/ kept as canonical, web/ pages merged (Library, Reader, AddBook, Auth, Settings)
- Added Dockerfiles for backend/ and frontend/
- Updated docker-compose.yml for consolidated services
- Updated README, package.json workspaces
- api/ and web/ directories removed

README.md

@@ -1,38 +1,57 @@
 # Cloud Reader
 
-A full-stack cloud-based e-book reader application with cross-device synchronization.
+A full-stack e-book reader application with cross-device sync. Upload EPUB/PDF files, track reading progress, bookmark passages, take notes, and customize your reading experience.
 
 ## Architecture
 
-- **Backend**: Django 5.x + Django REST Framework
-- **Frontend**: React with TypeScript
-- **Database**: PostgreSQL
-- **Monorepo**: Yarn workspaces
+```
+cloud-reader/
+├── backend/         # Django REST API (canonical backend)
+│   ├── config/      # Django project settings
+│   ├── apps/
+│   │   ├── users/       # User auth (JWT)
+│   │   ├── books/       # Books, e-books, reading progress, settings
+│   │   └── annotations/ # Bookmarks and notes
+│   ├── manage.py
+│   └── requirements.txt
+├── frontend/        # React + Vite + TypeScript (canonical frontend)
+│   ├── src/
+│   │   ├── api/         # API client (axios with JWT refresh)
+│   │   ├── components/  # Reusable components
+│   │   ├── context/     # Auth and annotations context
+│   │   ├── hooks/       # Custom hooks
+│   │   ├── pages/       # Route pages (Library, Reader, AddBook, Auth, Settings)
+│   │   └── types/       # TypeScript type definitions
+│   └── package.json
+└── docker-compose.yml
+```
 
-## Getting Started
+## Quick Start
 
-### Prerequisites
-- Python 3.12+
-- Node.js 20+
-- PostgreSQL 15+
+### Docker (recommended)
+```bash
+docker compose up --build
+```
+- **Frontend:** http://localhost:5173
+- **Backend API:** http://localhost:8000/api/
 
-### Backend Setup
+### Backend (standalone)
 ```bash
 cd backend
-python -m venv .venv
-source .venv/bin/activate
 pip install -r requirements.txt
 python manage.py migrate
 python manage.py runserver
 ```
 
-### Frontend Setup
+### Frontend (standalone)
 ```bash
 cd frontend
 yarn install
 yarn dev
 ```
 
-## Projects
-
-See [Gitea Issues](https://gitea-dev.codescripters.org/crisleo-hermes/cloud-reader/issues) for the full roadmap.
+## Migration Notes
+Consolidated from duplicate `api/` + `web/` into single `backend/` + `frontend/` canonical structure.
+- `backend/` kept as canonical; `api/` features (e-book uploads, reading progress, reading settings) merged in.
+- `frontend/` kept as canonical; `web/` pages (Library, Reader, AddBook, Auth, Settings) merged in.
+- `api/` and `web/` directories removed.