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.

eslint.config.mjs

@@ -0,0 +1,18 @@
+import js from "@eslint/js";
+import globals from "globals";
+import jsdoc from "eslint-plugin-jsdoc";
+
+export default [
+  {
+    ignores: ["node_modules/**", "docs/**", "public/**", "web/**", "data/**"],
+  },
+  js.configs.recommended,
+  jsdoc.configs["flat/recommended"],
+  {
+    files: ["**/*.js"],
+    languageOptions: {
+      ecmaVersion: 2024,
+      globals: globals.node,
+    },
+  },
+];