allow uploading

web/nginx.conf

@@ -4,6 +4,9 @@ server {
     root /usr/share/nginx/html;
     index index.html;
 
+    # Allow large file uploads (matches API max upload size)
+    client_max_body_size 100M;
+
     location / {
         try_files $uri $uri/ /index.html;
     }