ci: skip Claude review when auth token is unavailable (#826)

Co-authored-by: PastaClaw <thepastaclaw@users.noreply.github.com>
Co-authored-by: lklimek <842586+lklimek@users.noreply.github.com>
Co-authored-by: PastaPastaPasta <6443210+PastaPastaPasta@users.noreply.github.com>

Author: 3 people

.github/workflows/claude-code-review.yml

@@ -26,10 +26,12 @@ jobs:
       id-token: write
     env:
       ANTHROPIC_MODEL: ${{ vars.CLAUDE_MODEL || 'opus' }}
+      CLAUDE_CODE_OAUTH_TOKEN_LKLIMEK: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN_LKLIMEK }}
     steps:
       - name: Claudius Review
+        if: ${{ env.CLAUDE_CODE_OAUTH_TOKEN_LKLIMEK != '' }}
         uses: lklimek/claudius-review-action@main
         with:
-          claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN_LKLIMEK }}
+          claude_code_oauth_token: ${{ env.CLAUDE_CODE_OAUTH_TOKEN_LKLIMEK }}
           memcan_url: ${{ vars.MEMCAN_URL }}
           memcan_api_key: ${{ secrets.MEMCAN_API_KEY }}