docs(docker): Add Caddy via Caddyfile deployment and prioritise them

* Add compose and included Caddyfile using caddy:latest official image
* Rename old Caddy files as caddy-labels.yml and new one as caddy.yml
* Remove external: true network in caddy-labels.yml to simplify docs
* Move all Caddy selections to top, unprioritize Traefik and other RPs

docs/deploying/docker-compose.with-caddy.yml

@@ -1,23 +1,32 @@
+networks:
+    caddy:
+
+volumes:
+    db:
+
+configs:
+    dynamic.yml:
+        content: |
+            https://example.com, https://example.com:8448 {
+                reverse_proxy http://homeserver:8008
+            }
+
 services:
     caddy:
-    # This compose file uses caddy-docker-proxy as the reverse proxy for Continuwuity!
-    # For more info, visit https://github.com/lucaslorentz/caddy-docker-proxy
-        image: lucaslorentz/caddy-docker-proxy:ci-alpine
+        image: docker.io/caddy:latest
         ports:
             - 80:80
             - 443:443
-        environment:
-            - CADDY_INGRESS_NETWORKS=caddy
+            - 8448:8448
         networks:
             - caddy
         volumes:
-            - /var/run/docker.sock:/var/run/docker.sock
             - ./data:/data
         restart: unless-stopped
-        labels:
-            caddy: example.com
-            caddy.reverse_proxy: /.well-known/matrix/* homeserver:8008
-
+        configs:
+            - source: Caddyfile
+              target: /etc/caddy/Caddyfile
+        
     homeserver:
         image: forgejo.ellis.link/continuwuation/continuwuity:latest
         restart: unless-stopped
@@ -27,24 +36,10 @@ services:
             - /etc/resolv.conf:/etc/resolv.conf:ro # Use the host's DNS resolver rather than Docker's.
             #- ./continuwuity.toml:/etc/continuwuity.toml
         environment:
-            CONTINUWUITY_SERVER_NAME: example.com # EDIT THIS
+            CONTINUWUITY_SERVER_NAME: example.com
             CONTINUWUITY_DATABASE_PATH: /var/lib/continuwuity
             CONTINUWUITY_ADDRESS: 0.0.0.0
             CONTINUWUITY_PORT: 8008
             #CONTINUWUITY_CONFIG: '/etc/continuwuity.toml' # Uncomment if you mapped config toml above
-
-            # Required for .well-known delegation - edit these according to your chosen domain
-            CONTINUWUITY_WELL_KNOWN__CLIENT: https://matrix.example.com
-            CONTINUWUITY_WELL_KNOWN__SERVER: matrix.example.com:443
         networks:
-            - caddy
-        labels:
-            caddy: matrix.example.com
-            caddy.reverse_proxy: "{{upstreams 8008}}"
-
-volumes:
-    db:
-
-networks:
-    caddy:
-        external: true
+            - caddy