Add Claude Code feature (#534)

* Add Claude Code Feature entry to collection-index.yml

🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <[email protected]>

* Add Claude Code feature

Author: 8enmann

Diff for: _data/collection-index.yml

@@ -966,7 +966,7 @@
   maintainer: ForWarD Software
   contact: https://github.com/forwardsoftware/devcontainer-features/issues
   repository: https://github.com/forwardsoftware/devcontainer-features
-  ociReference: ghcr.io/forwardsoftware/devcontainer-features 
+  ociReference: ghcr.io/forwardsoftware/devcontainer-features
 - name: devcontainer feature to install apt dependencies defined in an `Aptfile.dev` file.
   maintainer: Viktor Schmidt
   contact: https://github.com/viktorianer/devcontainer-features/issues
@@ -1007,6 +1007,11 @@
   contact: https://github.com/RouL/devcontainer-features/issues
   repository: https://github.com/RouL/devcontainer-features
   ociReference: ghcr.io/roul/devcontainer-features
+- name: Claude Code Feature
+  maintainer: Anthropic
+  contact: https://github.com/anthropics/devcontainer-features/issues
+  repository: https://github.com/anthropics/devcontainer-features
+  ociReference: ghcr.io/anthropics/devcontainer-features/claude-code
 - name: devcontainer templates by blooop
   maintainer: Austin Gregg-Smith
   contact: https://github.com/blooop/devcontainer-templates/issues