Add detailed static file debugging

- Check assets directory contents specifically
- Add /test-static route to debug file serving
- Investigate why browser isn't loading CSS/JS assets

crossword-app/backend/src/app.js

@@ -70,12 +70,33 @@ if (process.env.NODE_ENV === 'production') {
   try {
     const files = fs.readdirSync(staticPath);
     console.log(`Static files found:`, files);
+    
+    // Check assets directory specifically
+    const assetsPath = path.join(staticPath, 'assets');
+    if (fs.existsSync(assetsPath)) {
+      const assetFiles = fs.readdirSync(assetsPath);
+      console.log(`Assets directory contents:`, assetFiles);
+    } else {
+      console.error(`Assets directory not found at: ${assetsPath}`);
+    }
   } catch (error) {
     console.error(`Error reading static files directory:`, error.message);
   }
   
   app.use(express.static(staticPath));
   
+  // Test route to check if static serving works
+  app.get('/test-static', (req, res) => {
+    const fs = require('fs');
+    const assetsPath = path.join(staticPath, 'assets');
+    try {
+      const files = fs.readdirSync(assetsPath);
+      res.json({ staticPath, assetsPath, files });
+    } catch (error) {
+      res.status(500).json({ error: error.message, staticPath, assetsPath });
+    }
+  });
+  
   // Log static file requests specifically
   app.use('/assets/*', (req, res, next) => {
     console.log(`Asset request: ${req.path}`);