infra: relocate docker-30 compose stack under vms-home/, add garage and frisbee-drills

Move the docker-30 service definitions (gitea, kanidm, vault, zot,
nginx, lab-proxy, maru-hleda-byt, fuj-management) into vms-home/ to
match the naming convention used for other hosts, and add the new
garage object-storage and frisbee-drills services alongside it.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

vms-home/docker-30/gitea/readme.md

@@ -0,0 +1,14 @@
+# Gitea
+
+```bash
+# mkdir -p /srv/docker/gitea-production/{data,postgres,minio,config}
+mkdir -p /srv/docker/gitea-production/{data,postgres,config}
+cd /srv/docker/gitea-production
+
+# Generate secure passwords
+echo "POSTGRES_PASSWORD=$(openssl rand -base64 32)" > .env
+echo "MINIO_ROOT_PASSWORD=$(openssl rand -base64 24)" >> .env
+echo "GITEA_SECRET_KEY=$(openssl rand -base64 32)" >> .env
+echo "INTERNAL_TOKEN=$(openssl rand -base64 32)" >> .env
+
+```