fix(map): serve terrain tiles from website containers too (nginx location + volume)

docker-compose.yml

@@ -464,6 +464,8 @@ services:
     depends_on:
       backend:
         condition: service_healthy
+    volumes:
+      - ${TERRAIN_TILES_PATH:-./terrain-tiles}:/terrain-tiles:ro
     tmpfs:
       - /tmp:rw,noexec,nosuid,size=16m,mode=1777
       - /var/cache/nginx:rw,noexec,nosuid,size=32m,uid=101,gid=101,mode=0755
@@ -596,6 +598,8 @@ services:
     depends_on:
       backend:
         condition: service_healthy
+    volumes:
+      - ${TERRAIN_TILES_PATH:-./terrain-tiles}:/terrain-tiles:ro
     tmpfs:
       - /tmp:rw,noexec,nosuid,size=16m,mode=1777
       - /var/cache/nginx:rw,noexec,nosuid,size=32m,uid=101,gid=101,mode=0755

nginx.website.conf

@@ -85,6 +85,15 @@ server {
         try_files $uri =404;
     }
 
+    # OS Terrain 50 terrain tiles (terrarium-encoded PNG)
+    location /terrain-tiles/ {
+        alias /terrain-tiles/;
+        include /etc/nginx/snippets/security-headers.conf;
+        add_header Access-Control-Allow-Origin *;
+        add_header Cache-Control "public, max-age=604800, immutable";
+        try_files $uri =404;
+    }
+
     # Prefer the prerendered route shell (for example /topology/index.html)
     # without redirecting the public URL to this container's internal port.
     location / {