Fixed: fix empty result in household api search

fix https://gitlab.com/Chill-Projet/chill-bundles/-/issues/85

src/Bundle/ChillMainBundle/Search/SearchApiQuery.php

@@ -16,6 +16,18 @@ use function count;
 use function implode;
 use function strtr;
 
+/**
+ * This create a query optimized for searching for the api response.
+ *
+ * When build, this class generate a SQL string and a list of a parameters which is suitable for running
+ * a native SQL query. This have usually the form of
+ *
+ * `SELECT '<key>' as key, <metadata> as metadata, <pertinence> as pertinence FROM <from clause> WHERE <where clause>`.
+ *
+ * The clause between `<>` are provided through the dedicated method in this class (@link{self::setSelectKey},
+ * @link{self::setFromClause}), etc.).
+ *
+ */
 class SearchApiQuery
 {
     private ?string $fromClause = null;