add /blacklist endpoint

docker/caddy/Caddyfile

@@ -15,6 +15,16 @@
 	    method OPTIONS
     }
 
+    @blacklist {
+        method GET
+        path /blacklist
+    }
+
+    @portals {
+        method GET
+        path /portals
+    }
+
     # OPTIONS headers to allow CORS https://enable-cors.org
     handle @options {
         header {
@@ -28,7 +38,11 @@
 
     reverse_proxy /health-check health-check:3100
 
-    reverse_proxy /portals nginx:80 {
+    reverse_proxy @blacklist nginx:80 {
+        header_up User-Agent Sia-Agent
+        header_down Access-Control-Allow-Origin *
+    }
+    reverse_proxy @portals nginx:80 {
         header_up User-Agent Sia-Agent
         header_down Access-Control-Allow-Origin *
     }

docker/nginx/conf.d/client.conf

@@ -41,6 +41,12 @@ server {
 	client_body_buffer_size 128k;
 	client_max_body_size 128k;
 
+	location /blacklist {
+		proxy_cache skynet;
+		proxy_cache_valid any 1m; # cache blacklist for 1 minute
+		proxy_pass http://siad-download/skynet/blacklist;
+	}
+
 	location /portals {
 		proxy_cache skynet;
 		proxy_cache_valid any 1m; # cache portals for 1 minute