Initial commit: MangaReader iOS App

✨ Features:
- App iOS completa para leer manga sin publicidad
- Scraper con WKWebView para manhwaweb.com
- Sistema de descargas offline
- Lector con zoom y navegación
- Favoritos y progreso de lectura
- Compatible con iOS 15+ y Sideloadly/3uTools

📦 Contenido:
- Backend Node.js con Puppeteer (opcional)
- App iOS con SwiftUI
- Scraper de capítulos e imágenes
- Sistema de almacenamiento local
- Testing completo
- Documentación exhaustiva

🧪 Prueba: Capítulo 789 de One Piece descargado exitosamente
  - 21 páginas descargadas
  - 4.68 MB total
  - URLs verificadas y funcionales

🎉 Generated with Claude Code (https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

backend/node_modules/whatwg-encoding/lib/whatwg-encoding.js

@@ -0,0 +1,60 @@
+"use strict";
+const iconvLite = require("iconv-lite");
+const supportedNames = require("./supported-names.json");
+const labelsToNames = require("./labels-to-names.json");
+
+const supportedNamesSet = new Set(supportedNames);
+
+// https://encoding.spec.whatwg.org/#concept-encoding-get
+exports.labelToName = label => {
+  label = String(label).trim().toLowerCase();
+
+  return labelsToNames[label] || null;
+};
+
+// https://encoding.spec.whatwg.org/#decode
+exports.decode = (uint8Array, fallbackEncodingName) => {
+  let encoding = fallbackEncodingName;
+  if (!exports.isSupported(encoding)) {
+    throw new RangeError(`"${encoding}" is not a supported encoding name`);
+  }
+
+  const bomEncoding = exports.getBOMEncoding(uint8Array);
+  if (bomEncoding !== null) {
+    encoding = bomEncoding;
+    // iconv-lite will strip BOMs for us, so no need to do the extra byte removal that the spec does.
+    // Note that we won't end up in the x-user-defined case when there's a bomEncoding.
+  }
+
+  if (encoding === "x-user-defined") {
+    // https://encoding.spec.whatwg.org/#x-user-defined-decoder
+    let result = "";
+    for (const byte of uint8Array) {
+      if (byte <= 0x7F) {
+        result += String.fromCodePoint(byte);
+      } else {
+        result += String.fromCodePoint(0xF780 + byte - 0x80);
+      }
+    }
+    return result;
+  }
+
+  return iconvLite.decode(uint8Array, encoding);
+};
+
+// https://github.com/whatwg/html/issues/1910#issuecomment-254017369
+exports.getBOMEncoding = uint8Array => {
+  if (uint8Array[0] === 0xFE && uint8Array[1] === 0xFF) {
+    return "UTF-16BE";
+  } else if (uint8Array[0] === 0xFF && uint8Array[1] === 0xFE) {
+    return "UTF-16LE";
+  } else if (uint8Array[0] === 0xEF && uint8Array[1] === 0xBB && uint8Array[2] === 0xBF) {
+    return "UTF-8";
+  }
+
+  return null;
+};
+
+exports.isSupported = name => {
+  return supportedNamesSet.has(String(name));
+};