feat: add Monero and Liquid Network container support

- AppMetadata for monerod/monero and elementsd/liquid in docker_packages
- Marketplace entries with pinned images from trusted registries
- Monero: sethforprivacy/simple-monerod:v0.18.3.4
- Liquid: vulpemventures/elements:23.2.2

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

core/archipelago/src/container/docker_packages.rs

@@ -400,6 +400,20 @@ fn get_app_metadata(app_id: &str) -> AppMetadata {
             repo: "https://github.com/ollama/ollama".to_string(),
             tier: "",
         },
+        "monerod" | "monero" => AppMetadata {
+            title: "Monero".to_string(),
+            description: "Private cryptocurrency full node (Monero)".to_string(),
+            icon: "/assets/img/app-icons/monero.png".to_string(),
+            repo: "https://github.com/monero-project/monero".to_string(),
+            tier: "",
+        },
+        "elementsd" | "liquid" => AppMetadata {
+            title: "Liquid Network".to_string(),
+            description: "Bitcoin sidechain for confidential transactions and faster settlements".to_string(),
+            icon: "/assets/img/app-icons/liquid.png".to_string(),
+            repo: "https://github.com/ElementsProject/elements".to_string(),
+            tier: "",
+        },
         "searxng" => AppMetadata {
             title: "SearXNG".to_string(),
             description: "Privacy-respecting metasearch engine".to_string(),