Release v0.1.1: hide sponsored listings, broaden detail-page detection

- Hide any card whose anchor carries `journey=FEATURED_LISTING_JOURNEY`
  or whose container is tagged featured/sponsor/promoted.
- Detail-page URL regex now also matches `/classifieds/advert/{id}` and
  `/cars/{slug}/{id}` in case AutoTrader redirects through either.
- Added a `[ATM]` console.log at init so unresolved detection issues can
  be diagnosed from Firefox DevTools.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

content.css

@@ -61,6 +61,11 @@ html.atm-hide-dismissed .atm-card.atm-dismissed {
   display: none !important;
 }
 
+/* Sponsored / featured listings — fully hidden */
+.atm-sponsored {
+  display: none !important;
+}
+
 /* --- Detail page: floating action button --- */
 
 .atm-fab {