docs: move public docs generation to local workflow

mkdocs-public.yml

@@ -0,0 +1,13 @@
+site_name: Public Infrastructure Documentation
+site_description: Sanitized public documentation generated and committed from the docker host
+repo_url: https://github.com/beatz174-bit/docker
+docs_dir: docs/public
+
+nav:
+  - Home: index.md
+  - Compose Inventory: compose-inventory.md
+  - Traefik Routes: traefik-routes.md
+  - Prometheus Rules: prometheus-rules.md
+
+theme:
+  name: mkdocs