chore: sync submodule state (parent ref update)

Made-with: Cursor

scripts/deploy-frontend-to-vmid5000.sh

@@ -80,7 +80,7 @@ echo ""
 
 # Step 4b: Deploy favicon and apple-touch-icon
 echo "=== Step 4b: Deploying icons ==="
-for ASSET in apple-touch-icon.png favicon.ico; do
+for ASSET in explorer-spa.js apple-touch-icon.png favicon.ico; do
     SRC="${FRONTEND_PUBLIC}/${ASSET}"
     if [ ! -f "$SRC" ]; then
         echo "⚠️  Skip $ASSET (not found)"