Offline edits that send when back online, books saved on the device, and keyboard access for dialogs and Bible verses; roadmap

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

public/music.js

@@ -1,7 +1,8 @@
 'use strict';
 // ---- Plex Music (via the server's /plex proxy; sign-in goes through plex.tv, no password handled here)
 const jfetch = async (path, opts) => {
-  const r = await fetch(path, opts); const j = await r.json().catch(() => ({}));
+  let r; try { r = await fetch(path, opts); } catch (e) { const q = typeof offQueued === 'function' && offQueued(path, opts); if (q) return q; throw e; } // (a few kinds of change are kept for later when there is no signal)
+  const j = await r.json().catch(() => ({}));
   if (!r.ok) throw Object.assign(new Error(j.error || 'Request failed (' + r.status + ')'), { status: r.status });
   return j;
 };