fix: nginx temp dirs and permission fix for Hugging Face

frontend/nginx.conf

@@ -1,3 +1,13 @@
+# Remove or comment out `user` directive if it's elsewhere
+# user nginx;
+
+# Set custom temp directories to avoid permission errors
+client_body_temp_path /app/tmp/body;
+proxy_temp_path       /app/tmp/proxy;
+fastcgi_temp_path     /app/tmp/fastcgi;
+uwsgi_temp_path       /app/tmp/uwsgi;
+scgi_temp_path        /app/tmp/scgi;
+
 server {
     listen 7860;
 
@@ -10,20 +20,18 @@ server {
         try_files $uri /index.html;
     }
 
-    # Proxy API requests to the backend service
-    # Any request to http://<your-space-url>/api/...
-    # will be forwarded to http://backend:8000/...
+    # Proxy API requests to the backend
     location /api {
-        proxy_pass http://127.0.0.1:8000; # 'backend' is the service name in docker-compose.yml
+        proxy_pass http://127.0.0.1:8000;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto $scheme;
     }
 
-    # Optional: Improve performance with caching for static assets
+    # Cache static assets
     location ~* \.(css|js|jpg|jpeg|png|gif|ico|svg)$ {
         expires 1y;
         add_header Cache-Control "public";
     }
-} 
+}