Feat: Privacy Concern redesign to match project structure

src/Privacy/DTOs/UserSubject.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace Modules\Core\Privacy\DTOs;
+
+use Illuminate\Contracts\Auth\Authenticatable;
+use Lunar\Base\LunarUser;
+
+/**
+ * Identifies "the person" for a User-scoped data-subject request — erasing/
+ * exporting one individual's own identity (login, name, email) wherever it
+ * appears, regardless of how many Customer (business) accounts they're linked to.
+ * Deliberately carries no customerId: a provider that needs to know which
+ * Customer accounts this User is linked to (e.g. to detach them, or to find data
+ * keyed by a shared email) looks that up itself, rather than this value object
+ * assuming one fixed Customer — the whole point is that one User can belong to
+ * many Customer accounts (B2B multi-seat access) and erasing the User must not
+ * assume or privilege any single one of them.
+ */
+class UserSubject
+{
+    public function __construct(
+        public readonly int $userId,
+        public readonly ?string $email = null,
+    ) {}
+
+    public static function forUser(Authenticatable&LunarUser $user): self
+    {
+        return new self(userId: $user->id, email: $user->email);
+    }
+}