Add DNS servers to backend container to resolve external API calls

Fixes ENOTFOUND api.wren.co error by adding Google DNS servers (8.8.8.8, 8.8.4.4)
to the backend container configuration.

docker-compose.yml

@@ -38,6 +38,9 @@ services:
       - WREN_API_TOKEN=${WREN_API_TOKEN}
       - WREN_DRY_RUN=${WREN_DRY_RUN:-false}
       - DATABASE_PATH=/app/data/orders.db
+    dns:
+      - 8.8.8.8
+      - 8.8.4.4
     networks:
       - puffin-network
     restart: unless-stopped

nginx-host.conf

@@ -88,7 +88,7 @@ server {
 
     # === Backend API - Stripe Webhooks (specific route, no trailing slash) ===
     location = /api/webhooks/stripe {
-        proxy_pass         http://127.0.0.1:3001/api/webhooks/stripe;
+        proxy_pass         http://127.0.0.1:3801/api/webhooks/stripe;
         proxy_http_version 1.1;
         proxy_set_header   Host $host;
         proxy_set_header   X-Real-IP $remote_addr;
@@ -106,7 +106,7 @@ server {
 
     # === Backend API - All other API routes ===
     location /api/ {
-        proxy_pass         http://127.0.0.1:3001/;
+        proxy_pass         http://127.0.0.1:3801/;
         proxy_http_version 1.1;
         proxy_set_header   Host $host;
         proxy_set_header   X-Real-IP $remote_addr;