Fix Claude workflow: add id-token permission

Add missing id-token: write permission required for OIDC token generation.
This resolves the "Unable to get ACTIONS_ID_TOKEN_REQUEST_URL" error.

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

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

Author: ry-ops

.github/workflows/claude.yml

@@ -12,6 +12,7 @@ permissions:
   contents: write
   issues: write
   pull-requests: write
+  id-token: write
 
 jobs:
   claude: