Add optional SMTP configuration for Authentik, including email host, port, and credentials. Update README and .env.sample to clarify usage for outbound email settings. Introduce blueprint support for enhanced deployment flexibility, with assertions in Ansible tasks to ensure required variables are set when enabled.

komodo/s3/versitygw/compose.yaml

@@ -26,7 +26,8 @@ services:
       # Public base URL of the *S3 API* only (Pangolin → :10000). Not the WebUI hostname.
       # No trailing slash. If this points at the UI URL, bucket ops return 404/wrong host.
       VGW_WEBUI_GATEWAYS: ${VGW_WEBUI_GATEWAYS}
-      # Browser Origin when WebUI and API use different HTTPS hostnames (see wiki / WebGUI CORS).
+      # Browser Origin for cross-host S3 from the UI (maps to --cors-allow-origin). See .env.sample
+      # for third-party consoles vs bucket PutBucketCors overrides.
       VGW_CORS_ALLOW_ORIGIN: ${VGW_CORS_ALLOW_ORIGIN}
     ports:
       - "${VERSITYGW_PORT:-10000}:10000"