Playback page: show 'E{n} — episode title' line under the video

The name was only in the grid tooltip (hover-only, invisible on touch).
Add a persistent now-playing line between the player and controls:
'E1 — Ryomen Sukuna'. setNowEp() runs on every play() and refreshes
when the async Jikan name lands late. Bumped asset version to v=3.

static/app.js

@@ -300,6 +300,12 @@ async function showAnime(slug_id, opts = {}) {
   player.append(videoEl());
   main.append(player);
 
+  // "now playing" line: E-number + MAL episode title (name arrives async
+  // from Jikan, so setNowEp() refreshes it whenever the name lands)
+  const nowEp = el("div", "now-ep");
+  nowEp.id = "now-ep";
+  main.append(nowEp);
+
   const controls = el("div", "controls");
   const langBtn = el("button", null, langLabel());
   langBtn.onclick = () => {
@@ -668,7 +674,7 @@ function attachEpNames() {
   p.then(list => {
     let changed = false;
     list.forEach((t, i) => { if (t && t.title && epsList[i]) { epsList[i].name = t.title; changed = true; } });
-    if (changed) renderEps();
+    if (changed) { renderEps(); if (currentEp) setNowEp(currentEp.ep_id, currentEp.ep_no); }
   });
 }
 
@@ -798,8 +804,16 @@ function nextCountdown(nxt) {
   draw();
 }
 
+function setNowEp(ep_id, ep_no) {
+  const n = document.getElementById("now-ep");
+  if (!n) return;
+  const e = epsList.find(x => String(x.id) === String(ep_id));
+  n.textContent = "E" + ep_no + (e && e.name ? " — " + e.name : "");
+}
+
 async function play(ep_id, ep_no) {
   playerBroken = false;
+  setNowEp(ep_id, ep_no);
   localStorage.setItem("aniweb_lang_" + detail.slug_id, lang);
   try {
     const s = await api(`/api/episode/${ep_id}/stream?lang=${lang}`);