fix: Correct environment variable syntax for Komodo Secrets

- Replace ${SECRET:name} with ${NAME} format
- Replace hyphens with underscores in variable names
- Affected: gotify, grafana, vaultwarden, obsidian-livesync

stacks/grafana/compose.yaml

@@ -9,8 +9,8 @@ services:
       - grafana_data:/var/lib/grafana
       - grafana_config:/etc/grafana
     environment:
-      - GF_SECURITY_ADMIN_USER=${SECRET:grafana-admin-user}
-      - GF_SECURITY_ADMIN_PASSWORD=${SECRET:grafana-admin-pass}
+      - GF_SECURITY_ADMIN_USER=${GRAFANA_ADMIN_USER}
+      - GF_SECURITY_ADMIN_PASSWORD=${GRAFANA_ADMIN_PASS}
       - GF_USERS_ALLOW_SIGN_UP=false
     networks:
       - monitoring