Fix stdin hijack when run via curl | bash

When piped through curl, stdin is the download stream, not the
terminal. This caused setup wizard prompts to read empty input
(the 'rogue enter' bug). Fix: reopen stdin from /dev/tty before
any interactive prompts.

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

install.sh

@@ -50,6 +50,13 @@ show_progress() {
     fi
 }
 
+# --- Reclaim stdin for interactive prompts ---
+# When run via `curl ... | bash`, stdin is the pipe. Reopen it from
+# the terminal so read prompts (setup wizard, confirmations) work.
+if [ ! -t 0 ]; then
+    exec < /dev/tty
+fi
+
 header "WebsiteBox Installer"
 
 # --- Check for root/sudo ---