Add /ml-health endpoint for direct ML service access

nginx.conf

@@ -24,6 +24,12 @@ http {
             proxy_read_timeout 60s;
         }
 
+        location /ml-health {
+            proxy_pass http://127.0.0.1:8000/api/v1/health;
+            proxy_http_version 1.1;
+            proxy_set_header Host $host;
+        }
+
         location / {
             try_files $uri $uri/ /index.html;
         }