fix: remove duplicate tier fields in AppMetadata

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

core/archipelago/src/container/docker_packages.rs

@@ -292,7 +292,6 @@ struct AppMetadata {
 }
 
 /// Get the app tier: "core", "recommended", or "optional".
-fn get_app_tier(app_id: &str) -> &'static str {
     match app_id {
         // Core: required for basic Bitcoin node
         "bitcoin" | "bitcoin-core" | "bitcoin-knots" => "core",
@@ -322,7 +321,6 @@ fn get_app_metadata(app_id: &str) -> AppMetadata {
             icon: "/assets/img/app-icons/bitcoin-knots.webp".to_string(),
             repo: "https://github.com/bitcoinknots/bitcoin".to_string(),
             tier: "",
-            tier: "",
         },
         "btcpay" | "btcpay-server" | "btcpayserver" => AppMetadata {
             title: "BTCPay Server".to_string(),
@@ -330,7 +328,6 @@ fn get_app_metadata(app_id: &str) -> AppMetadata {
             icon: "/assets/img/app-icons/btcpay-server.png".to_string(),
             repo: "https://github.com/btcpayserver/btcpayserver".to_string(),
             tier: "",
-            tier,
         },
         "homeassistant" | "home-assistant" => AppMetadata {
             title: "Home Assistant".to_string(),
@@ -576,7 +573,6 @@ fn get_app_metadata(app_id: &str) -> AppMetadata {
             icon: "/assets/img/favico.png".to_string(),
             repo: "#".to_string(),
             tier: "",
-            tier: "",
         },
     };
     meta.tier = get_app_tier(app_id);