Initial commit: NAUT torrent web UI with stubbed server

Advanced torrent client web UI aimed at power users, with a
zero-dependency Node stub server (built-in http + SSE) serving live
mock data.

- Dense sortable/multi-select torrent grid with live updates
- Detail panel: General/Trackers/Peers/Content/Pieces (resizable)
- Sidebar filters: status, categories, tags, trackers
- Create/delete categories and tags (sidebar + right-click)
- Add via magnet or client-side-parsed .torrent upload
- RSS, integrated search, and read-only engine views
- Hand-drawn SVG icon set, dark theme, keyboard shortcuts

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

public/js/api.js

@@ -0,0 +1,48 @@
+// Thin API client + SSE live stream.
+
+async function jget(url) {
+  const r = await fetch(url);
+  if (!r.ok) throw new Error(`${url} → ${r.status}`);
+  return r.json();
+}
+async function jpost(url, body) {
+  const r = await fetch(url, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(body || {}),
+  });
+  return r.json();
+}
+
+export const api = {
+  meta: () => jget('/api/meta'),
+  snapshot: () => jget('/api/snapshot'),
+  torrent: (hash) => jget(`/api/torrents/${hash}`),
+  trackers: (hash) => jget(`/api/torrents/${hash}/trackers`),
+  peers: (hash) => jget(`/api/torrents/${hash}/peers`),
+  files: (hash) => jget(`/api/torrents/${hash}/files`),
+  pieces: (hash) => jget(`/api/torrents/${hash}/pieces`),
+
+  action: (action, hashes, params) => jpost('/api/action', { action, hashes, params }),
+  remove: (hashes, deleteFiles) => jpost('/api/delete', { hashes, deleteFiles }),
+  add: (opts) => jpost('/api/add', opts),
+  toggleAltSpeed: () => jpost('/api/altspeed', {}),
+
+  createCategory: (name, savePath) => jpost('/api/categories', { name, savePath }),
+  deleteCategory: (name) => jpost('/api/categories/delete', { name }),
+  createTag: (name) => jpost('/api/tags', { name }),
+  deleteTag: (name) => jpost('/api/tags/delete', { name }),
+
+  rss: () => jget('/api/rss'),
+  rssRules: () => jget('/api/rss/rules'),
+  search: (q) => jget(`/api/search?q=${encodeURIComponent(q)}`),
+
+  // Live snapshot stream. onSnapshot(snapshot) called ~1/s.
+  stream(onSnapshot, onStatus) {
+    const es = new EventSource('/api/stream');
+    es.addEventListener('snapshot', (e) => onSnapshot(JSON.parse(e.data)));
+    es.onopen = () => onStatus && onStatus('connected');
+    es.onerror = () => onStatus && onStatus('reconnecting');
+    return es;
+  },
+};