add docker deployment stack and vps setup docs

deployment/docker/nginx.conf

@@ -0,0 +1,39 @@
+map $http_upgrade $connection_upgrade {
+  default upgrade;
+  '' close;
+}
+
+server {
+  listen 80;
+  server_name _;
+
+  client_max_body_size 16m;
+
+  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;
+
+  location = /health {
+    proxy_pass http://api:4000/health;
+  }
+
+  location ^~ /ws/ {
+    proxy_pass http://api:4000;
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection $connection_upgrade;
+    proxy_read_timeout 3600s;
+    proxy_send_timeout 3600s;
+  }
+
+  location ~ ^/(prints|nbbo|quotes|candles|joins|dark|flow|replay)/ {
+    proxy_pass http://api:4000;
+    proxy_http_version 1.1;
+  }
+
+  location / {
+    proxy_pass http://web:3000;
+    proxy_http_version 1.1;
+  }
+}