fix: the Lottie source is builder-only for users without unfiltered_html (P19)

lottie.innerContent (src → data-lottie-src) makes the frontend load an
animation whose expressions lottie-web runs with eval; it joins the S7 gate
in ValueCleaner, which covers removals and StoredNodeGuard.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

tests/Unit/Integrations/Divi/Compose/StoredNodeGuardTest.php

@@ -164,6 +164,13 @@ final class StoredNodeGuardTest extends TestCase
                 ])]]]),
                 'module.decoration.interactions',
             ],
+            'lottie source (P19)' => [
+                self::node('divi/lottie', ['lottie' => ['innerContent' => self::desktop([
+                    'src' => 'https://probe.example/anim.json',
+                    'trigger' => 'onLoad',
+                ])]]),
+                'lottie.innerContent',
+            ],
             // Code module (E6).
             'code module' => [
                 self::node('divi/code', ['content' => ['innerContent' => self::desktop(self::PROBE_SCRIPT)]]),