fix(node-player): use Express 5 catch-all route syntax

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

furumi-node-player/server/src/index.ts

@@ -124,7 +124,7 @@ app.get('/auth/logout', (req, res) => {
 // Production: serve Vite-built client as static files
 const clientDist = path.resolve(import.meta.dirname, '../../client/dist');
 app.use(express.static(clientDist));
-app.get('*', (_req, res) => {
+app.get('/{*path}', (_req, res) => {
   res.sendFile(path.join(clientDist, 'index.html'));
 });