import {readFile,writeFile} from 'node:fs/promises';
import {createHash} from 'node:crypto';
const buffers=[];
for(let i=0;i<7;i++)buffers.push(await readFile(new URL(`beryl-agent-20260909.zip.part${String(i).padStart(2,'0')}`,import.meta.url)));
const zip=Buffer.concat(buffers);
const expected='7ccd1bed92da17cc120efd5082659c373a6cc2be540c60fcaf9d8219064fdb39';
if(createHash('sha256').update(zip).digest('hex')!==expected)throw new Error('Checksum mismatch. Download all seven parts again.');
await writeFile(new URL('beryl-agent-20260909.zip',import.meta.url),zip,{flag:'wx'});
console.log('Verified: beryl-agent-20260909.zip. Extract into a new directory.');