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

docker-compose.yml

@@ -5,48 +5,54 @@ services:
     volumes:
       - postgres_data:/var/lib/postgresql/data
     environment:
-      POSTGRES_DB: cloudreader
-      POSTGRES_USER: cloudreader
-      POSTGRES_PASSWORD: cloudreader
+      POSTGRES_DB: cloud_reader
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
     ports:
       - "5432:5432"
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U cloudreader -d cloudreader"]
+      test: ["CMD-SHELL", "pg_isready -U postgres -d cloud_reader"]
       interval: 5s
       timeout: 5s
       retries: 10
 
-  api:
+  backend:
     build:
-      context: ./api
+      context: ./backend
+      dockerfile: Dockerfile
     ports:
       - "8000:8000"
     environment:
-      DATABASE_URL: "postgres://cloudreader:cloudreader@db:5432/cloudreader"
       DJANGO_SECRET_KEY: "dev-secret-key-change-in-production"
       DJANGO_DEBUG: "True"
+      DB_NAME: cloud_reader
+      DB_USER: postgres
+      DB_PASSWORD: postgres
+      DB_HOST: db
+      DB_PORT: "5432"
     volumes:
-      - ./api:/app
-      - book_uploads:/app/media
+      - ./backend:/app
+      - book_media:/app/media
     command: >
       sh -c "python manage.py migrate && python manage.py runserver 0.0.0.0:8000"
     depends_on:
       db:
         condition: service_healthy
 
-  web:
+  frontend:
     build:
-      context: ./web
+      context: ./frontend
+      dockerfile: Dockerfile
     ports:
-      - "3000:3000"
+      - "5173:5173"
     environment:
       VITE_API_URL: "http://localhost:8000"
     volumes:
-      - ./web:/app
+      - ./frontend:/app
       - /app/node_modules
     depends_on:
-      - api
+      - backend
 
 volumes:
   postgres_data:
-  book_uploads:
+  book_media: