implemented compose by url, parse, local yaml.

roles/wizarr/upstream/SOURCE.md

@@ -0,0 +1,7 @@
+# Upstream Snapshot
+
+This directory stores copied upstream reference files for the `wizarr` role.
+
+See `docs/upstream-sources.yml` for repository URLs, refs, README paths, Compose paths, and verification status.
+
+Snapshot files are reference material only. Deployments are generated from this role's `templates/` directory.