fix: is_hidden boolean coercion and forum settings access

extend.php

@@ -34,5 +34,6 @@ return [
     (new Flarum\Settings())
         ->default('blomstra-search.search-discussion-subjects', true)
         ->default('blomstra-search.search-post-bodies', true)
-        ->default('blomstra-search.min-search-length', Commands\BuildCommand::DEFAULT_MIN_SEARCH_LENGTH),
+        ->default('blomstra-search.min-search-length', Commands\BuildCommand::DEFAULT_MIN_SEARCH_LENGTH)
+        ->serializeToForum('blomstraSearchMinLength', 'blomstra-search.min-search-length', 'intval'),
 ];

js/src/forum/index.ts

@@ -9,7 +9,7 @@ import DiscussionsSearchSource from './SearchSources/DiscussionsSearchSource';
 import extendDiscussionState from './PaginatedListStates/extendDiscussionState';
 
 app.initializers.add('blomstra-search', () => {
-  const minLength = parseInt(app.data.settings['blomstra-search.min-search-length'] || String(Search.MIN_SEARCH_LEN), 10);
+  const minLength = (app.forum.attribute('blomstraSearchMinLength') as number) || Search.MIN_SEARCH_LEN;
   if (minLength !== Search.MIN_SEARCH_LEN) {
     // Flarum provides no extension point for MIN_SEARCH_LEN, so we overwrite the
     // static property directly. TypeScript `readonly` is compile-time only — at

src/Api/Controllers/SearchController.php

@@ -214,7 +214,7 @@ class SearchController extends ListDiscussionsController
 
             // Guests and non-moderators may not see hidden posts; exclude them from child matching.
             if ($actor->isGuest() || !$actor->hasPermission('post.hide')) {
-                $postQuery->add(TermQuery::create('is_hidden', false), 'filter');
+                $postQuery->add(TermQuery::create('is_hidden', 'false'), 'filter');
             }
 
             $textQuery->add(