Add single WhisperX load balancer config

deploy/ai-server/whisperx-lb.single.conf

@@ -0,0 +1,20 @@
+upstream whisperx_upstream {
+    server whisperx-1:8000 max_fails=3 fail_timeout=30s;
+}
+
+server {
+    listen 80 default_server;
+    client_max_body_size 200m;
+
+    location / {
+        proxy_pass http://whisperx_upstream;
+        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_connect_timeout 30s;
+        proxy_send_timeout    10m;
+        proxy_read_timeout    10m;
+        proxy_request_buffering off;
+        proxy_buffering         off;
+    }
+}