Subklassifizierte Array-Sammlung für Payload-Buffer-Manipulation im Next.js Edge Runtime

export class ChunkCollection extends Array {
  static get [Symbol.species]() {
    return Array;
  }
 
  compactChunks() {
    return this.filter(chunk => chunk && chunk.length > 0);
  }
 
  toPayloadBuffer() {
    const validChunks = this.compactChunks();
    const totalLength = validChunks.reduce((acc, c) => acc + c.length, 0);
    const result = new Uint8Array(totalLength);
    
    let offset = 0;
    for (const chunk of validChunks) {
      result.set(chunk, offset);
      offset += chunk.length;
    }
    return result;
  }
}