fix: make drift detection fail when transfer automation is not ready (#13)

Update drift detection to fail CI checks when repositories with Origin
field are present, since the transfer automation is not yet implemented.

Previously, pending transfers were treated as "informational only" and
the CI would pass even though the PR couldn't be executed. This was
misleading because:
- The repository doesn't exist in the org yet
- The transfer can't be performed (API not implemented)
- The PR represents actual drift that should block merging

Changes:
- Include pendingTransfer in hasDrift calculation
- Update error messages to reflect blocking behavior
- Change warning icon (⚠️) to error icon (❌) for clarity

This ensures PRs with Origin field will properly fail CI until the
transfer automation is complete, preventing confusion about whether
the PR can actually be merged and executed.

Author: TooAngel

scripts/detect-drift.js

@@ -227,16 +227,17 @@ async function main() {
     console.log(report);
 
     // Exit with error code if drift detected (useful for CI)
-    // Note: pendingTransfer is informational, not an error
+    // Note: pendingTransfer blocks CI until transfer automation is implemented
     const hasDrift = drift.missing.length > 0 ||
                      drift.extra.length > 0 ||
                      drift.descriptionDiff.length > 0 ||
-                     drift.topicsDiff.length > 0;
+                     drift.topicsDiff.length > 0 ||
+                     drift.pendingTransfer.length > 0;
 
-    // Warn about pending transfers
+    // Warn about pending transfers (causes CI to fail)
     if (drift.pendingTransfer.length > 0) {
-      console.error('\n⚠️  Warning: Repository transfer feature is under development');
-      console.error('   PRs with Origin field will be blocked until transfer automation is complete');
+      console.error('\n❌ Error: Repository transfer feature is under development');
+      console.error('   This PR will be blocked until transfer automation is complete');
 
       // Check permission status
       const readyCount = drift.pendingTransfer.filter(