fix: romaji index routes moved after app init + kuromoji in root package.json

- app.get/delete for /api/romaji-index were placed before const app = express()
  causing ReferenceError on startup — moved into the ROUTES section
- kuromoji moved from backend/package.json to root package.json so Docker
  picks it up during the existing npm install step
- Fixed dicPath resolution to use path.dirname(require.resolve(...))

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

backend/novasonic-server.js

@@ -26,7 +26,8 @@ const { downloadTrack, downloadAlbumTracks } = require('./lib/downloader');
 let _tokenizer = null;
 try {
   const kuromoji = require('kuromoji');
-  kuromoji.builder({ dicPath: path.join(require.resolve('kuromoji'), '../../dict') })
+  const dicPath  = path.join(path.dirname(require.resolve('kuromoji')), '..', 'dict');
+  kuromoji.builder({ dicPath })
     .build((err, t) => {
       if (err) console.warn('⚠️  kuromoji failed to load:', err.message);
       else     { _tokenizer = t; console.log('✅ kuromoji tokenizer ready'); }
@@ -113,46 +114,6 @@ async function _fetchNdSongs(ndUrl, user, pass) {
   return songs;
 }
 
-// GET /api/romaji-index?ndUrl=...&user=...&pass=...
-app.get('/api/romaji-index', async (req, res) => {
-  const { ndUrl, user, pass } = req.query;
-  if (!ndUrl || !user || !pass) return res.status(400).json({ error: 'missing params' });
-  if (!_tokenizer) return res.status(503).json({ error: 'tokenizer not ready — try again in a few seconds' });
-
-  const key    = `${ndUrl}|${user}`;
-  const cached = _romajiCache.get(key);
-  if (cached && Date.now() - cached.ts < ROMAJI_TTL) return res.json(cached.index);
-
-  try {
-    const songs = await _fetchNdSongs(ndUrl, user, pass);
-    const index = songs
-      .filter(s => JP_RE.test(s.title) || JP_RE.test(s.artist) || JP_RE.test(s.album))
-      .map(s => ({
-        id:       s.id,
-        r:        [_toRomaji(s.title), _toRomaji(s.artist), _toRomaji(s.album)].join(' '),
-        title:    s.title,
-        artist:   s.artist    || '',
-        album:    s.album     || '',
-        coverArt: s.coverArt  || '',
-        duration: s.duration  || 0,
-        albumId:  s.albumId   || '',
-        artistId: s.artistId  || '',
-      }));
-    _romajiCache.set(key, { ts: Date.now(), index });
-    console.log(`✅ Romaji index built: ${index.length} JP songs (${songs.length} total)`);
-    res.json(index);
-  } catch (e) {
-    console.error('Romaji index error:', e);
-    res.status(500).json({ error: e.message });
-  }
-});
-
-// DELETE /api/romaji-index — force rebuild on next request
-app.delete('/api/romaji-index', (req, res) => {
-  _romajiCache.clear();
-  res.json({ ok: true });
-});
-
 // ─── INIT ─────────────────────────────────────────────────────────────────────
 const app = express();
 app.use((req, res, next) => {
@@ -204,6 +165,46 @@ function parseSpotifyUrl(url) {
 
 // ─── ROUTES ──────────────────────────────────────────────────────────────────
 
+// GET /api/romaji-index?ndUrl=...&user=...&pass=...
+app.get('/api/romaji-index', async (req, res) => {
+  const { ndUrl, user, pass } = req.query;
+  if (!ndUrl || !user || !pass) return res.status(400).json({ error: 'missing params' });
+  if (!_tokenizer) return res.status(503).json({ error: 'tokenizer not ready — try again in a few seconds' });
+
+  const key    = `${ndUrl}|${user}`;
+  const cached = _romajiCache.get(key);
+  if (cached && Date.now() - cached.ts < ROMAJI_TTL) return res.json(cached.index);
+
+  try {
+    const songs = await _fetchNdSongs(ndUrl, user, pass);
+    const index = songs
+      .filter(s => JP_RE.test(s.title) || JP_RE.test(s.artist) || JP_RE.test(s.album))
+      .map(s => ({
+        id:       s.id,
+        r:        [_toRomaji(s.title), _toRomaji(s.artist), _toRomaji(s.album)].join(' '),
+        title:    s.title,
+        artist:   s.artist    || '',
+        album:    s.album     || '',
+        coverArt: s.coverArt  || '',
+        duration: s.duration  || 0,
+        albumId:  s.albumId   || '',
+        artistId: s.artistId  || '',
+      }));
+    _romajiCache.set(key, { ts: Date.now(), index });
+    console.log(`✅ Romaji index built: ${index.length} JP songs (${songs.length} total)`);
+    res.json(index);
+  } catch (e) {
+    console.error('Romaji index error:', e);
+    res.status(500).json({ error: e.message });
+  }
+});
+
+// DELETE /api/romaji-index — force rebuild on next request
+app.delete('/api/romaji-index', (req, res) => {
+  _romajiCache.clear();
+  res.json({ ok: true });
+});
+
 app.post('/api/spotify/track-artwork', async (req, res) => {
   const tracks = req.body.tracks || [];
   if (!tracks.length) return res.json({ results: [] });

package.json

@@ -7,6 +7,9 @@
     "preview": "vite preview",
     "icons": "node scripts/gen-icons.mjs"
   },
+  "dependencies": {
+    "kuromoji": "^0.1.2"
+  },
   "devDependencies": {
     "sharp": "^0.34.5",
     "vite": "^5.4.0"