refactor: one site-wide Divi cache clear and one compatibility row (review M-1, M-2)

DiviSaver's site-wide scopes and the Theme Builder tools now share
DiviThemeBuilder::clearSiteCaches(), which clears the Theme Builder cache
even when ET_Core_PageResource is missing. lit-site-status no longer lists
et_theme_builder_clear_wp_cache twice: the Theme Builder functions row
covers it, and the post-type row uses DiviThemeBuilder::postTypes().

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7

src/Integrations/Divi/Pages/DiviSaver.php

@@ -8,6 +8,7 @@ use LIT\MCP\Abilities\Errors;
 use LIT\MCP\Abilities\FollowUp;
 use LIT\MCP\Abilities\Rollback;
 use LIT\MCP\Abilities\WriteFailed;
+use LIT\MCP\Integrations\Divi\ThemeBuilder\DiviThemeBuilder;
 use LIT\MCP\Integrations\WordPress\PostGuard;
 use LIT\MCP\Integrations\WordPress\RevisionPoint;
 use RuntimeException;
@@ -106,16 +107,12 @@ class DiviSaver
         }
         FollowUp::run(
             static function () use ($postId, $scope): void {
-                if (! class_exists('ET_Core_PageResource')) {
-                    return;
+                if (class_exists('ET_Core_PageResource')) {
+                    \ET_Core_PageResource::remove_static_resources($postId, 'all', true);
                 }
-                \ET_Core_PageResource::remove_static_resources($postId, 'all', true);
                 // A global library entry is part of every page that shows it (spec §5.6 step 5).
                 if ($scope->clearsSiteCss()) {
-                    \ET_Core_PageResource::remove_static_resources('all', 'all', true);
-                    if (function_exists('et_theme_builder_clear_wp_cache')) {
-                        et_theme_builder_clear_wp_cache('all');
-                    }
+                    DiviThemeBuilder::clearSiteCaches();
                 }
             },
             'divi static css',