Fix some issues

.github/workflows/pull-request.yml

@@ -471,22 +471,24 @@ jobs:
       - name: Check CodeRabbit.ai Approval
         run: |
           reviews=$(curl -s -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
-          https://api.github.com/repos/${{ github.repository }}/pulls/${{ github.event.pull_request.number }}/reviews) || {
+            https://api.github.com/repos/${{ github.repository }}/pulls/${{ github.event.pull_request.number }}/reviews) 
+
+          if [ $? -ne 0 ]; then
             echo "Error: Failed to fetch PR reviews"
             exit 1
-          }
+          fi
 
           if ! echo "$reviews" | jq . >/dev/null 2>&1; then
             echo "Error: Invalid JSON response from GitHub API"
             exit 1
-          }
-
+          fi
+          
           approval_count=$(echo "$reviews" | jq '[.[] | select(.state == "APPROVED" and .user.login == "coderabbitai")] | length')
 
           if [[ ! "$approval_count" =~ ^[0-9]+$ ]]; then
             echo "Error: Failed to parse approval count"
             exit 1
-          }
+          fi
 
           if [[ $approval_count -eq 0 ]]; then
             echo "Error: PR is not approved by CodeRabbit.ai"