debug: add /api/events-debug/:artist endpoint to inspect raw Ticketmaster response

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

backend/novasonic-server.js

@@ -360,6 +360,26 @@ app.get('/api/events/:artist', (req, res) => {
   }).on('error', e => { console.error('[events] request error:', e.message); res.json([]); });
 });
 
+// Debug-only: returns raw Ticketmaster response so you can see exactly what the API sends back.
+// Visit /api/events-debug/Maduk in your browser to test.
+app.get('/api/events-debug/:artist', (req, res) => {
+  const key = CONFIG.ticketmasterKey;
+  if (!key) return res.json({ error: 'TICKETMASTER_API_KEY not set in .env' });
+  const artist = req.params.artist;
+  const now    = new Date().toISOString().replace(/\.\d{3}Z$/, 'Z');
+  const url    = `https://app.ticketmaster.com/discovery/v2/events.json` +
+    `?keyword=${encodeURIComponent(artist)}&classificationName=music` +
+    `&startDateTime=${now}&size=5&sort=date,asc&apikey=${key}`;
+  https.get(url, { headers: { 'Accept': 'application/json' } }, upstream => {
+    let body = '';
+    upstream.on('data', d => body += d);
+    upstream.on('end', () => {
+      try { res.json({ status: upstream.statusCode, url: url.replace(key, 'KEY_HIDDEN'), body: JSON.parse(body) }); }
+      catch { res.json({ status: upstream.statusCode, raw: body.slice(0, 500) }); }
+    });
+  }).on('error', e => res.json({ error: e.message }));
+});
+
 app.get('/api/health', (req, res) => {
   res.json({
     status: 'ok', ytdlpVersion,