update downstream tests for text user requirement

Text now requires a User on construction. seed a user in
each test setUp that creates a Text directly or through the
fake repository so the suite remains green.

tests/e2e/Controllers/ScheduledNodeControllerTest.php

@@ -82,7 +82,7 @@ class ScheduledNodeControllerTest extends TestCase
             node: new Node(
                 id: 0,
                 title: $nodeTitle,
-                text: new Text(id: 0, name: 'test text'),
+                text: new Text(id: 0, name: 'test text', user: $user),
                 parentNode: null,
             ),
         ));