docs: add CDN refresh interval changelog entry

CHANGELOG.md

@@ -9,6 +9,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 ### Improved
 
 - **More accurate rage click detection.** Rage clicks no longer fire when you triple-click to select text on a page. Previously, selecting a paragraph (a normal 3-click action) was being counted as a rage click, which inflated frustration metrics. Only genuinely frustrated rapid clicking is tracked now.
+- **Fresher CDN data.** BunnyCDN statistics now refresh every 3 hours instead of once a day, so your CDN tab shows much more current bandwidth, request, and cache data.
 - **More accurate dead click detection.** Dead clicks were being reported on elements that actually worked — like close buttons on cart drawers, modal dismiss buttons, and page content areas. Three fixes make dead clicks much more reliable:
   - Buttons that trigger changes elsewhere on the page (closing a drawer, opening a modal) are no longer flagged as dead.
   - Page content areas that aren't actually clickable (like `<main>` containers) are no longer treated as interactive elements.