fix: offer the questionnaire after every placement, the bus part to escorts

src/Model/Questionnaire/Definition.php

@@ -2,6 +2,8 @@
 
 namespace App\Model\Questionnaire;
 
+use App\Enum\QuestionnaireFlag;
+
 /**
  * One version of a questionnaire as read from config/questionnaires/. Responses store its key and
  * version, and their answers are keyed by Question::$key.
@@ -20,6 +22,26 @@ readonly class Definition
     ) {
     }
 
+    /**
+     * The questionnaire as one subject gets it: without the sections marked `only_for` a flag the
+     * subject does not have. Key and version stay, so answers to it are answers to this definition.
+     *
+     * @param list<QuestionnaireFlag> $flags
+     */
+    public function forFlags(array $flags): static
+    {
+        return new static(
+            $this->key,
+            $this->version,
+            $this->title,
+            $this->description,
+            array_values(array_filter(
+                $this->sections,
+                static fn (Section $section): bool => null === $section->onlyFor || in_array($section->onlyFor, $flags, true),
+            )),
+        );
+    }
+
     /**
      * @return array<string, Question> in the order they are asked, keyed by question key
      */

src/Model/Questionnaire/Section.php

@@ -2,15 +2,19 @@
 
 namespace App\Model\Questionnaire;
 
+use App\Enum\QuestionnaireFlag;
+
 readonly class Section
 {
     /**
-     * @param list<Question> $questions
+     * @param list<Question>         $questions
+     * @param QuestionnaireFlag|null $onlyFor   part of the questionnaire only when the subject has this flag
      */
     public function __construct(
         public string $key,
         public ?string $title,
         public array $questions,
+        public ?QuestionnaireFlag $onlyFor = null,
     ) {
     }
 }