Add initial project structure with Docker support and chapter downloading functionality

- Created .dockerignore and .gitignore files to exclude unnecessary files from Docker builds.
- Added Dockerfile for multi-stage build setup, including dependencies and production environment configuration.
- Introduced docker-compose.yml for service orchestration, including FlareSolverr and the main application.
- Implemented core functionality for downloading manga chapters, including utilities for handling file paths and chapter metadata.
- Added ESLint configuration for code quality and consistency.
- Included JSDoc configuration for documentation generation.
- Established initial package.json and package-lock.json with necessary dependencies for the project.

docker-compose.yml

@@ -0,0 +1,26 @@
+services:
+  flaresolverr:
+    image: ghcr.io/flaresolverr/flaresolverr:latest
+    environment:
+      LOG_LEVEL: info
+    ports:
+      - "8191:8191"
+    restart: unless-stopped
+
+  cxyz:
+    build: .
+    ports:
+      - "3000:3000"
+    environment:
+      PORT: "3000"
+      DATA_DIR: /app/data
+      # Wake hourly; sync at most one due title per wake.
+      WATCH_CRON: "0 * * * *"
+      # Each title is eligible again after this many hours (daily).
+      WATCH_TITLE_INTERVAL_HOURS: "24"
+      FLARESOLVERR_URL: http://flaresolverr:8191/v1
+    volumes:
+      - ./data:/app/data
+    depends_on:
+      - flaresolverr
+    restart: unless-stopped