doc updates and test fixin

docker/nginx/dev.conf

@@ -46,6 +46,13 @@ server {
         proxy_set_header X-Forwarded-Proto $scheme;
     }
 
+    # Serve flyer images from static storage
+    location /flyer-images/ {
+        alias /app/public/flyer-images/;
+        expires 7d;
+        add_header Cache-Control "public, immutable";
+    }
+
     # Proxy all other requests to Vite dev server on port 5173
     location / {
         proxy_pass http://localhost:5173;