refactor(scribe): normalize ASCII formatting

Remove decorative Unicode banner comments, replace em-dashes with
hyphens across Dockerfile, configs, docs, and one Go log string,
alphabetize the builder-stage yum package list, and drop the
non-standard description/version LABELs from the runtime stage.

scribe-2.2/scripts/docker-entrypoint.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# docker-entrypoint.sh – Scribe daemon startup script
+# docker-entrypoint.sh - Scribe daemon startup script
 #
 # Reads SCRIBE_CONFIG env var (default: /etc/scribe/scribe.conf)
 # and launches scribed with that configuration file.