---------- REDESIGN FEEDBACK (welcome banner → "Share feedback") ---------- A quick 👍/👎 survey in a popover under the banner. Sent to the same hook as the article "Was this helpful?" form (setting "Feedback webhook URL", same params), with category "Help Center redesign" so it can be filtered apart; analytics uses its own event so article-helpfulness numbers aren't skewed. Kill switch: theme setting "Collect feedback in a popover" (header.hbs).