Extracts `ws` (web seed) parameters from the magnet link and merges them with the explicit `urlList` (e.g., from direct URL) when initializing the WebTorrent stream. This fixes a regression where magnet-embedded web seeds were ignored if a direct URL was provided.
- Updates `js/magnets.js` to parse `ws` parameters and export `webSeedsFromMagnet`.
- Updates `js/webtorrent.js` to merge magnet web seeds with `opts.urlList`.
- Adds regression test `tests/webtorrent-webseeds.test.mjs`.
Co-authored-by: PR0M3TH3AN <[email protected]>
