Add sanitized compose for caddy-vm and automation-vm stacks

Caddy (+ a truncated/sanitized example Caddyfile showing the mTLS +
Authentik forward-auth pattern without the real subdomain list),
Hawser, Gitea (private instance only, dropped the public-mirror
service - that's already its own public thing), Kestra (genericized
the ansible-repo/SSH-key bind mounts), Mosquitto, n8n, NetBox,
Node-RED.

Docker/Caddy/Caddyfile

@@ -0,0 +1,68 @@
+# Truncated, sanitized example - real Caddyfile has one block per app.
+# Shows the pattern: mTLS + Authentik forward-auth in front of every
+# reverse-proxied service.
+
+{
+    servers {
+        protocols h1 h2
+    }
+}
+
+# -------------------------
+# mTLS
+# -------------------------
+(local_mtls) {
+    tls /etc/caddy/certs/example.com.crt /etc/caddy/certs/example.com.key {
+        client_auth {
+            mode require_and_verify
+
+            trust_pool file {
+                pem_file /etc/caddy/certs/example.com.ca.crt
+            }
+        }
+    }
+}
+
+# -------------------------
+# Authentik forward auth
+# -------------------------
+(authentik_forward_auth) {
+    forward_auth http://authentik.internal:9054 {
+        uri /outpost.goauthentik.io/auth/caddy
+
+        trusted_proxies private_ranges
+
+        header_up Host {host}
+        header_up X-Forwarded-Host {host}
+        header_up X-Forwarded-Proto {scheme}
+        header_up X-Forwarded-For {remote_host}
+        header_up X-Real-IP {remote_host}
+
+        copy_headers {
+            X-Authentik-Username
+            X-Authentik-Email
+            X-Authentik-Groups
+            X-Authentik-Uid
+        }
+    }
+}
+
+# -------------------------
+# Example app entries
+# -------------------------
+app1.example.com {
+    import local_mtls
+    import authentik_forward_auth
+    reverse_proxy http://app1.internal:8080
+}
+
+app2.example.com {
+    import local_mtls
+    reverse_proxy http://app2.internal:9000 {
+        header_up Host {host}
+        header_up X-Forwarded-Host {host}
+        header_up X-Forwarded-Proto {scheme}
+        header_up X-Forwarded-For {remote_host}
+        header_up X-Real-IP {remote_host}
+    }
+}