WordPress Content Pipeline — Edit to Fresh Page Diagram

Edit fires a signed webhook; the handler revalidates every applicable tag together
Next fetch with matching tags reads fresh data within seconds
No fallback ordering — all tags bust in one Promise.all

x-webhook-secret compared with timingSafeEqual; secret needs 32+ chars
Workspace settings is the only writer back to WordPress
WordPress down means serving cache until WORDPRESS_CACHE_DURATION expires
Serving stale cache while WordPress is down is covered by WORDPRESS_CACHE_DURATION, not drawn