fix: album cards use romaji index for album name display via _albumRomajiMap

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/api.js

@@ -71,16 +71,20 @@ export async function ndAuth() {
 let _romajiIndex = null;
 let _romajiMap      = null; // Map<songId, { titleRomaji, artistRomaji, albumRomaji }>
 let _artistRomajiMap = null; // Map<artistId, artistRomaji>
+let _albumRomajiMap  = null; // Map<albumName(JP), albumRomaji> — for album cards without song ID
 let _romajiIndexFetch = null; // in-flight promise dedup
 
 function _buildRomajiMap(idx) {
   const m  = new Map();
   const am = new Map();
+  const bm = new Map();
   if (Array.isArray(idx)) idx.forEach(e => {
     m.set(String(e.id), e);
     if (e.artistId && e.artistRomaji) am.set(String(e.artistId), e.artistRomaji);
+    if (e.album && e.albumRomaji && !bm.has(e.album)) bm.set(e.album, e.albumRomaji);
   });
   _artistRomajiMap = am;
+  _albumRomajiMap  = bm;
   return m;
 }
 
@@ -96,7 +100,7 @@ export async function fetchRomajiIndex() {
   return _romajiIndexFetch;
 }
 
-export function invalidateRomajiIndex() { _romajiIndex = null; _romajiMap = null; _artistRomajiMap = null; }
+export function invalidateRomajiIndex() { _romajiIndex = null; _romajiMap = null; _artistRomajiMap = null; _albumRomajiMap = null; }
 
 // ─── ROMAJI OVERRIDES ───
 // Stored server-side (shared across all clients). Cached in memory per session.
@@ -144,7 +148,8 @@ export function dispArtistById(id, name) {
 export function dispAlbumName(name) {
   if (!S.cfg.showRomaji) return name || '';
   const ov = getRomajiOverrides();
-  return ov[name] || name || '';
+  if (name && ov[name]) return ov[name];
+  return _albumRomajiMap?.get(name) || name || '';
 }
 
 // Synchronous lookup — returns index entry for a song ID, or null if not in index.

src/views.js

@@ -281,7 +281,10 @@ export async function loadAlbumRow(id, method, extra) {
   if(!c) return;
   c.innerHTML = '<div class="spinner"></div>';
   try {
-    const r = await api(method, extra);
+    const [r] = await Promise.all([
+      api(method, extra),
+      S.cfg.showRomaji ? fetchRomajiIndex().catch(() => {}) : Promise.resolve(),
+    ]);
     c.innerHTML = '';
     (r.albumList2?.album || []).forEach(a => c.appendChild(makeAlbumCard(a)));
   } catch(e) { c.innerHTML = `<div style="color:var(--text3);font-size:13px;padding:16px">${e.message}</div>`; }