chore(apps): remove six fake bookmark apps

484.kitchen, Arch Presentation, Call the Operator, Next Web News
Network, Syntropy Institute, and T-0 were hardcoded web-only bookmark
apps (no manifests/containers). Removed across the frontend app grid /
curated / marketplace / session / launcher data, the backend
AppMetadata table, their icons, and the nginx /ext/ proxy blocks
(external-app-proxies.conf deleted — nothing installed it anymore).
botfights/nostrudel/gitea keep the shared external-app code paths.

Frontend: vue-tsc clean, 672 tests pass, production build verified
clean of the removed slugs. Backend: cargo check clean.

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

core/archipelago/src/container/docker_packages.rs

@@ -540,48 +540,6 @@ fn get_app_metadata(app_id: &str) -> AppMetadata {
             repo: "https://botfights.net".to_string(),
             tier: "",
         },
-        "nwnn" => AppMetadata {
-            title: "Next Web News Network".to_string(),
-            description: "Decentralized news and link aggregator, synced from Telegram".to_string(),
-            icon: "/assets/img/app-icons/nwnn.png".to_string(),
-            repo: "https://nwnn.l484.com".to_string(),
-            tier: "",
-        },
-        "484-kitchen" => AppMetadata {
-            title: "484 Kitchen".to_string(),
-            description: "K484 application platform".to_string(),
-            icon: "/assets/img/app-icons/484-kitchen.png".to_string(),
-            repo: "https://484.kitchen".to_string(),
-            tier: "",
-        },
-        "call-the-operator" => AppMetadata {
-            title: "Call the Operator".to_string(),
-            description: "Escape the Matrix — explore decentralized alternatives".to_string(),
-            icon: "/assets/img/app-icons/call-the-operator.png".to_string(),
-            repo: "https://cta.tx1138.com".to_string(),
-            tier: "",
-        },
-        "arch-presentation" => AppMetadata {
-            title: "Arch Presentation".to_string(),
-            description: "Archipelago: The Future of Decentralized Infrastructure".to_string(),
-            icon: "/assets/img/app-icons/arch-presentation.png".to_string(),
-            repo: "https://present.l484.com".to_string(),
-            tier: "",
-        },
-        "syntropy-institute" => AppMetadata {
-            title: "Syntropy Institute".to_string(),
-            description: "Medicine Reimagined — frequency analysis-therapy and digital homeopathy".to_string(),
-            icon: "/assets/img/app-icons/syntropy-institute.png".to_string(),
-            repo: "https://syntropy.institute".to_string(),
-            tier: "",
-        },
-        "t-zero" => AppMetadata {
-            title: "T-0".to_string(),
-            description: "Documentary series on decentralization, Bitcoin, and the ungovernable future".to_string(),
-            icon: "/assets/img/app-icons/t-zero.png".to_string(),
-            repo: "https://teeminuszero.net".to_string(),
-            tier: "",
-        },
         _ => AppMetadata {
             title: app_id.to_string(),
             description: format!("{} application", app_id),