feat: add docker remotes to artifactapi

- set artifactapi to specific version
- add dockerhub and ghcr to remotes

apps/base/artifactapi/resources/remotes.yaml

@@ -291,7 +291,7 @@ remotes:
       - "claude-code-releases/.*/manifest.json$"
     cache:
       file_ttl: 0
-      index_ttl: 0
+      index_ttl: 300
 
   local-generic:
     type: "local"
@@ -300,3 +300,21 @@ remotes:
     cache:
       file_ttl: 0
       index_ttl: 0
+
+  ghcr:
+    base_url: "https://ghcr.io"
+    type: "docker"
+    package: "generic"
+    description: "GitHub Container Registry"
+    cache:
+      file_ttl: 0
+      index_ttl: 300
+
+  dockerhub:
+    base_url: "https://registry-1.docker.io"
+    type: "docker"
+    package: "generic"
+    description: "Docker Hub registry"
+    cache:
+      file_ttl: 0
+      index_ttl: 300