feat: Provisionner automatiquement un nouvel établissement

Lorsqu'un super-admin crée un établissement via l'interface, le système
doit automatiquement créer la base tenant, exécuter les migrations,
créer le premier utilisateur admin et envoyer l'invitation — le tout
de manière asynchrone pour ne pas bloquer la réponse HTTP.

Ce mécanisme rend chaque établissement opérationnel dès sa création
sans intervention manuelle sur l'infrastructure.

backend/tests/Unit/Scolarite/Application/Command/PublishGrades/PublishGradesHandlerTest.php

@@ -9,6 +9,8 @@ use App\Administration\Domain\Model\Subject\SubjectId;
 use App\Administration\Domain\Model\User\UserId;
 use App\Scolarite\Application\Command\PublishGrades\PublishGradesCommand;
 use App\Scolarite\Application\Command\PublishGrades\PublishGradesHandler;
+use App\Scolarite\Application\Port\EnseignantAffectationChecker;
+use App\Scolarite\Application\Service\AutorisationSaisieNotesChecker;
 use App\Scolarite\Domain\Exception\AucuneNoteSaisieException;
 use App\Scolarite\Domain\Exception\NonProprietaireDeLEvaluationException;
 use App\Scolarite\Domain\Exception\NotesDejaPublieesException;
@@ -22,6 +24,7 @@ use App\Scolarite\Domain\Model\Grade\GradeStatus;
 use App\Scolarite\Domain\Model\Grade\GradeValue;
 use App\Scolarite\Infrastructure\Persistence\InMemory\InMemoryEvaluationRepository;
 use App\Scolarite\Infrastructure\Persistence\InMemory\InMemoryGradeRepository;
+use App\Scolarite\Infrastructure\Persistence\InMemory\InMemoryTeacherReplacementRepository;
 use App\Shared\Domain\Clock;
 use App\Shared\Domain\Tenant\TenantId;
 use DateTimeImmutable;
@@ -37,12 +40,17 @@ final class PublishGradesHandlerTest extends TestCase
 
     private InMemoryEvaluationRepository $evaluationRepository;
     private InMemoryGradeRepository $gradeRepository;
+    private InMemoryTeacherReplacementRepository $replacementRepository;
     private Clock $clock;
 
+    /** @var array<string, bool> */
+    private array $affectationResults = [];
+
     protected function setUp(): void
     {
         $this->evaluationRepository = new InMemoryEvaluationRepository();
         $this->gradeRepository = new InMemoryGradeRepository();
+        $this->replacementRepository = new InMemoryTeacherReplacementRepository();
         $this->clock = new class implements Clock {
             public function now(): DateTimeImmutable
             {
@@ -50,9 +58,16 @@ final class PublishGradesHandlerTest extends TestCase
             }
         };
 
+        $this->affectationResults = [];
+        $this->affectationResults[self::TEACHER_ID] = true;
         $this->seedEvaluation();
     }
 
+    public function isTeacherAffecte(string $teacherId): bool
+    {
+        return $this->affectationResults[$teacherId] ?? false;
+    }
+
     #[Test]
     public function itPublishesGradesWhenGradesExist(): void
     {
@@ -107,18 +122,18 @@ final class PublishGradesHandlerTest extends TestCase
     }
 
     #[Test]
-    public function itThrowsWhenTeacherNotOwner(): void
+    public function itThrowsWhenTeacherNotAssigned(): void
     {
         $this->seedGrade();
         $handler = $this->createHandler();
-        $otherTeacher = '550e8400-e29b-41d4-a716-446655440099';
+        $unassignedTeacher = '550e8400-e29b-41d4-a716-446655440099';
 
         $this->expectException(NonProprietaireDeLEvaluationException::class);
 
         $handler(new PublishGradesCommand(
             tenantId: self::TENANT_ID,
             evaluationId: self::EVALUATION_ID,
-            teacherId: $otherTeacher,
+            teacherId: $unassignedTeacher,
         ));
     }
 
@@ -145,10 +160,35 @@ final class PublishGradesHandlerTest extends TestCase
         return new PublishGradesHandler(
             $this->evaluationRepository,
             $this->gradeRepository,
+            $this->createAutorisationChecker(),
             $this->clock,
         );
     }
 
+    private function createAutorisationChecker(): AutorisationSaisieNotesChecker
+    {
+        $test = $this;
+        $affectationChecker = new class($test) implements EnseignantAffectationChecker {
+            public function __construct(private readonly PublishGradesHandlerTest $test)
+            {
+            }
+
+            public function estAffecte(
+                UserId $teacherId,
+                ClassId $classId,
+                SubjectId $subjectId,
+                TenantId $tenantId,
+            ): bool {
+                return $this->test->isTeacherAffecte((string) $teacherId);
+            }
+        };
+
+        return new AutorisationSaisieNotesChecker(
+            $affectationChecker,
+            $this->replacementRepository,
+        );
+    }
+
     private function seedEvaluation(): void
     {
         $evaluation = Evaluation::reconstitute(