fix(caddy): route upstreams over docker networks

- replace host.docker.internal upstreams for document and komga
- attach home-caddy to document-server and komga docker networks
- avoid host-published port dependency and docker0 path

caddy/Caddyfile

@@ -63,7 +63,7 @@ jellyfin.hyungi.net {
 # Komga — GPU local
 # ============================================================
 komga.hyungi.net {
-    reverse_proxy host.docker.internal:25600
+    reverse_proxy komga:25600
 }
 
 # ============================================================
@@ -73,7 +73,7 @@ document.hyungi.net {
     request_body {
         max_size 100MB
     }
-    reverse_proxy host.docker.internal:8080
+    reverse_proxy hyungi_document_server-caddy-1:80
 }
 
 # ============================================================

docker-compose.yml

@@ -22,6 +22,8 @@ services:
         condition: service_healthy
     networks:
       - gateway-net
+      - komga_default
+      - hyungi_document_server_default
 
   home-fail2ban:
     image: crazymax/fail2ban:latest
@@ -103,3 +105,7 @@ volumes:
 networks:
   gateway-net:
     name: home-gateway-network
+  komga_default:
+    external: true
+  hyungi_document_server_default:
+    external: true