Only run publish-feature workflow when features folder changes

Added paths filter to publish-feature.yml to only trigger when files in .devcontainer/features/ or the workflow itself are modified. This prevents unnecessary workflow runs when unrelated code changes.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: Claude

.github/workflows/publish-feature.yml

@@ -2,6 +2,9 @@ name: Publish Dev Container Feature
 on:
   push:
     branches: [ "main", "feature/codespaces" ]
+    paths:
+      - ".devcontainer/features/**"
+      - ".github/workflows/publish-feature.yml"
 
 jobs:
   publish: