wire postgres session repo, migrations, seed, and dev serve

backend/app/Auth/PostgresSessionRepository.php

@@ -0,0 +1,64 @@
+<?php
+
+namespace App\Auth;
+
+use App\Database\SessionModel;
+use App\Shared\ValueObject\EmailAddress;
+use App\User\User;
+
+class PostgresSessionRepository implements SessionRepository
+{
+    public function create(CreateSessionDto $dto): Session
+    {
+        $record = SessionModel::create([
+            'token' => $dto->token,
+            'user_id' => $dto->user->getId(),
+            'created_at' => $dto->createdAt->format('Y-m-d H:i:s'),
+            'expires_at' => $dto->expiresAt->format('Y-m-d H:i:s'),
+        ]);
+
+        return new Session(
+            token: $record->token,
+            user: $dto->user,
+            createdAt: $dto->createdAt,
+            expiresAt: $dto->expiresAt,
+        );
+    }
+
+    public function findByToken(string $token): ?Session
+    {
+        $record = SessionModel::where('token', $token)->first();
+
+        if ($record === null) {
+            return null;
+        }
+
+        $userRecord = $record->user;
+
+        if ($userRecord === null) {
+            return null;
+        }
+
+        $user = new User(
+            id: $userRecord->id,
+            email: new EmailAddress($userRecord->email),
+            passwordHash: $userRecord->password_hash,
+        );
+
+        return new Session(
+            token: $record->token,
+            user: $user,
+            createdAt: $record->created_at instanceof \DateTimeImmutable
+                ? $record->created_at
+                : new \DateTimeImmutable($record->created_at->format('Y-m-d H:i:s')),
+            expiresAt: $record->expires_at instanceof \DateTimeImmutable
+                ? $record->expires_at
+                : new \DateTimeImmutable($record->expires_at->format('Y-m-d H:i:s')),
+        );
+    }
+
+    public function deleteByToken(string $token): void
+    {
+        SessionModel::where('token', $token)->delete();
+    }
+}