Add organize folders, details sheet, and richer previews.

Map keys 0–9 to destinations, inspect files before deciding, and preview
PDF/RAW/ZIP/video with an OLED dark UI polish plus demo seed and tests.

test/zip-list.test.js

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+'use strict';
+
+const test = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('node:fs');
+const os = require('node:os');
+const path = require('node:path');
+const { listZipEntries, formatZipListing } = require('../lib/zip-list');
+
+function writeTinyZip(dir) {
+  // Minimal hand-rolled store-method zip with two files (no compression).
+  // Local file headers + central directory + EOCD.
+  function local(name, data) {
+    const n = Buffer.from(name);
+    const header = Buffer.alloc(30);
+    header.writeUInt32LE(0x04034b50, 0);
+    header.writeUInt16LE(20, 4); // version
+    header.writeUInt16LE(0, 6); // flags
+    header.writeUInt16LE(0, 8); // store
+    header.writeUInt16LE(0, 10);
+    header.writeUInt16LE(0, 12);
+    header.writeUInt32LE(0, 14); // crc ignored for our reader
+    header.writeUInt32LE(data.length, 18);
+    header.writeUInt32LE(data.length, 22);
+    header.writeUInt16LE(n.length, 26);
+    header.writeUInt16LE(0, 28);
+    return Buffer.concat([header, n, data]);
+  }
+  function central(name, data, localOffset) {
+    const n = Buffer.from(name);
+    const header = Buffer.alloc(46);
+    header.writeUInt32LE(0x02014b50, 0);
+    header.writeUInt16LE(20, 4);
+    header.writeUInt16LE(20, 6);
+    header.writeUInt16LE(0, 8);
+    header.writeUInt16LE(0, 10);
+    header.writeUInt16LE(0, 12);
+    header.writeUInt16LE(0, 14);
+    header.writeUInt32LE(0, 16);
+    header.writeUInt32LE(data.length, 20);
+    header.writeUInt32LE(data.length, 24);
+    header.writeUInt16LE(n.length, 28);
+    header.writeUInt16LE(0, 30);
+    header.writeUInt16LE(0, 32);
+    header.writeUInt16LE(0, 34);
+    header.writeUInt16LE(0, 36);
+    header.writeUInt32LE(0, 38);
+    header.writeUInt32LE(localOffset, 42);
+    return Buffer.concat([header, n]);
+  }
+
+  const a = Buffer.from('alpha\n');
+  const b = Buffer.from('item,qty\n1,2\n');
+  const locA = local('readme.txt', a);
+  const locB = local('data/rows.csv', b);
+  const body = Buffer.concat([locA, locB]);
+  const cen = Buffer.concat([
+    central('readme.txt', a, 0),
+    central('data/rows.csv', b, locA.length),
+  ]);
+  const eocd = Buffer.alloc(22);
+  eocd.writeUInt32LE(0x06054b50, 0);
+  eocd.writeUInt16LE(0, 4);
+  eocd.writeUInt16LE(0, 6);
+  eocd.writeUInt16LE(2, 8);
+  eocd.writeUInt16LE(2, 10);
+  eocd.writeUInt32LE(cen.length, 12);
+  eocd.writeUInt32LE(body.length, 16);
+  eocd.writeUInt16LE(0, 20);
+
+  const zipPath = path.join(dir, 'sample.zip');
+  fs.writeFileSync(zipPath, Buffer.concat([body, cen, eocd]));
+  return zipPath;
+}
+
+test('listZipEntries reads names and sizes without extracting', async () => {
+  const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'swipeanything-zip-'));
+  const zipPath = writeTinyZip(dir);
+  const listing = await listZipEntries(zipPath);
+  assert.equal(listing.totalEntries, 2);
+  assert.equal(listing.truncated, false);
+  assert.deepEqual(
+    listing.entries.map((e) => e.name),
+    ['readme.txt', 'data/rows.csv']
+  );
+  assert.equal(listing.entries[0].size, 6);
+  const text = formatZipListing(listing);
+  assert.match(text, /readme\.txt/);
+  assert.match(text, /data\/rows\.csv/);
+  fs.rmSync(dir, { recursive: true, force: true });
+});