refactor: move Analytics from ThemeSettings to AdsensePlacement

- Remove Analytics and AdSense tabs from theme-settings component
- Add Analytics group to adsense-placement component
- Add roi_enqueue_analytics_script() for GA4/UA support
- Clean up ThemeSettings to only handle custom code (CSS/JS)
- Update FormBuilders and FieldMappers accordingly

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Admin/AdsensePlacement/Infrastructure/FieldMapping/AdsensePlacementFieldMapper.php

@@ -17,10 +17,14 @@ final class AdsensePlacementFieldMapper implements FieldMapperInterface
         return [
             // VISIBILITY
             'adsense-placementEnabled' => ['group' => 'visibility', 'attribute' => 'is_enabled'],
-            'adsense-placementDisableAutoAds' => ['group' => 'visibility', 'attribute' => 'disable_auto_ads'],
             'adsense-placementShowOnMobile' => ['group' => 'visibility', 'attribute' => 'show_on_mobile'],
             'adsense-placementShowOnDesktop' => ['group' => 'visibility', 'attribute' => 'show_on_desktop'],
 
+            // ANALYTICS (Google Analytics)
+            'adsense-placementAnalyticsEnabled' => ['group' => 'analytics', 'attribute' => 'analytics_enabled'],
+            'adsense-placementGaTrackingId' => ['group' => 'analytics', 'attribute' => 'ga_tracking_id'],
+            'adsense-placementGaAnonymizeIp' => ['group' => 'analytics', 'attribute' => 'ga_anonymize_ip'],
+
             // CONTENT (Credentials)
             'adsense-placementPublisherId' => ['group' => 'content', 'attribute' => 'publisher_id'],
             'adsense-placementSlotDisplay' => ['group' => 'content', 'attribute' => 'slot_display'],