fix: harden backend production deployment

deploy/nginx/whaletown-admin-v2.conf.example

@@ -0,0 +1,21 @@
+server {
+    listen 80;
+    server_name whaletownadmin.xinghangee.icu;
+
+    root /var/www/whale-town-end-v2/client/dist;
+    index index.html;
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+
+    location = /index.html {
+        add_header Cache-Control "no-cache";
+    }
+
+    location ~* \.(?:js|css|png|jpg|jpeg|gif|svg|ico|woff2?)$ {
+        expires 7d;
+        add_header Cache-Control "public, max-age=604800, immutable";
+        try_files $uri =404;
+    }
+}

deploy/nginx/whaletownend-v2.conf.example

@@ -0,0 +1,28 @@
+server {
+    listen 80;
+    server_name whaletownend.xinghangee.icu;
+
+    client_max_body_size 24m;
+
+    location /game {
+        proxy_pass http://127.0.0.1:3001/game;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
+        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;
+        proxy_read_timeout 3600s;
+        proxy_send_timeout 3600s;
+    }
+
+    location / {
+        proxy_pass http://127.0.0.1:3000;
+        proxy_http_version 1.1;
+        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;
+    }
+}