ci: add Claude Code GitHub Action workflow (#156)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: kirich1409

.github/workflows/claude.yml

@@ -35,6 +35,7 @@ jobs:
       pull-requests: write
       issues: write
       actions: read
+      id-token: write
     steps:
       - name: Checkout repository
         uses: actions/checkout@v6