fix(infra): run rclone installer with sudo

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

infra/setup_server.sh

@@ -44,7 +44,7 @@ fi
 # Install rclone (landing zone backup to R2)
 if ! command -v rclone &>/dev/null; then
     echo "Installing rclone..."
-    curl -fsSL https://rclone.org/install.sh | bash
+    curl -fsSL https://rclone.org/install.sh | sudo bash
     echo "Installed rclone $(rclone version --check | head -1)"
 else
     echo "rclone already installed, skipping"