Stemify iOS 1.1 and WebUI updates, repo restructure into desktop/ios/server/web

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

web/plex.js

@@ -25,6 +25,10 @@ export async function px(srv, path, params = {}) {
 
 export function img(srvId, thumb, size = 300) {
   const s = server(srvId);
+  if (!thumb || !s) return "";
+  // Playlist composites are already images Plex renders at any size; the photo transcoder
+  // can't fetch them, so ask for them directly.
+  if (thumb.includes("/composite/")) return `${s.url}${thumb}${thumb.includes("?") ? "&" : "?"}width=${size}&height=${size}&X-Plex-Token=${s.token}`;
   return thumb && s
     ? `${s.url}/photo/:/transcode?width=${size}&height=${size}&minSize=1&upscale=1&url=${encodeURIComponent(thumb)}&X-Plex-Token=${s.token}`
     : "";