fix: actually fail CI when transfer permissions are missing

The previous fix (PR #14) updated detect-drift.js to exit with code 1
when transfers are blocked due to missing permissions, but the workflow
file was never updated to propagate that failure.

The workflow had `exit 0` which always passed the job regardless of the
script's exit code. Changed to `exit 1` so the CI properly fails when
worlddriven lacks admin permission on source repositories.

Author: TooAngel

.github/workflows/drift-detection.yml

@@ -106,6 +106,7 @@ jobs:
       - name: Check drift detection result
         if: steps.drift.outputs.exit_code != '0'
         run: |
-          echo "⚠️ Drift detected between REPOSITORIES.md and GitHub organization"
-          echo "Review the drift report in the PR comment above"
-          exit 0
+          echo "❌ Transfer blocked: worlddriven lacks admin permission on source repository"
+          echo "Review the drift report in the workflow summary above"
+          echo "Grant worlddriven admin access to the source repository to unblock"
+          exit 1