fix principal access denied and fix test

app/Config/Routes.php

@@ -854,7 +854,7 @@ $routes->group('api/time', ['namespace' => 'App\Controllers\Api'], static functi
  * routes for View\SchoolCalendarController
  * --------------------------------------------------------------------
  */
-$routes->group('administrator', ['namespace' => 'App\Controllers', 'filter' => 'auth:admin'], function ($routes) {
+$routes->group('administrator', ['namespace' => 'App\Controllers', 'filter' => 'auth:admin|administrator|principal|vice_principal|vice principal'], function ($routes) {
     $routes->get('calendar_view', 'View\SchoolCalendarController::index');
     $routes->get('calendar_edit/(:num)', 'View\SchoolCalendarController::edit/$1');
     $routes->get('calendar_delete/(:num)', 'View\SchoolCalendarController::delete/$1');

app/Support/Enrollment/EnrollmentEligibility.php

@@ -9,7 +9,7 @@ final class EnrollmentEligibility
     public const DEFERRED_MESSAGE = 'Re-enrollment cannot currently be completed because the final deliberation decision is deferred. Please contact the school administration for the next required step.';
     public const KG_MISSING_DECISION_ELIGIBLE_MESSAGE = 'KG students may complete registration now. Their new-year grade placement will be based on the school age-placement rule.';
     public const MISSING_DECISION_MESSAGE = 'Re-enrollment cannot currently be completed because no final deliberation decision is recorded for the student. Registration will become available after the school records a final decision.';
-    public const ADULT_STUDENT_MESSAGE = 'This student will be 18 years old or older on September 1 of the selected school year. This student can no longer enroll with the school';
+    public const ADULT_STUDENT_MESSAGE = 'This student will be 18 years old or older on September 1 of the selected school year. A parent or guardian cannot complete registration for this student. Please contact school administration.';
     public const ADULT_STUDENT_PARENT_PORTAL_MESSAGE = self::ADULT_STUDENT_MESSAGE;
     public const WITHDRAWN_PORTAL_MESSAGE = 'This student is currently marked as Withdrawn and cannot be enrolled at this time. Please contact school administration.';
     public const SIBLING_PORTAL_MESSAGE = 'Enrollment cannot continue because the family record requires administrative review. Please contact school administration.';

tests/app/Config/SchoolCalendarRouteIntegrityTest.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Tests\App\Config;
+
+use CodeIgniter\Test\CIUnitTestCase;
+
+final class SchoolCalendarRouteIntegrityTest extends CIUnitTestCase
+{
+    public function testSchoolCalendarRoutesAllowPrincipalRole(): void
+    {
+        $routes = file_get_contents(ROOTPATH . 'app/Config/Routes.php') ?: '';
+
+        $this->assertStringContainsString(
+            "\$routes->group('administrator', ['namespace' => 'App\\Controllers', 'filter' => 'auth:admin|administrator|principal|vice_principal|vice principal'], function (\$routes) {\n    \$routes->get('calendar_view'",
+            $routes
+        );
+    }
+}