fix: Cleanup relationships when user is deleted (#6343)

* fix: Cleanup relationships when user is deleted

* Update tests

* Update User.test.ts

server/queues/processors/UserDeletedProcessor.ts

@@ -0,0 +1,56 @@
+import {
+  ApiKey,
+  GroupUser,
+  Star,
+  Subscription,
+  UserAuthentication,
+  UserPermission,
+} from "@server/models";
+import { sequelize } from "@server/storage/database";
+import { Event as TEvent, UserEvent } from "@server/types";
+import BaseProcessor from "./BaseProcessor";
+
+export default class UsersDeletedProcessor extends BaseProcessor {
+  static applicableEvents: TEvent["name"][] = ["users.delete"];
+
+  async perform(event: UserEvent) {
+    await sequelize.transaction(async (transaction) => {
+      await GroupUser.destroy({
+        where: {
+          userId: event.userId,
+        },
+        transaction,
+      });
+      await UserAuthentication.destroy({
+        where: {
+          userId: event.userId,
+        },
+        transaction,
+      });
+      await UserPermission.destroy({
+        where: {
+          userId: event.userId,
+        },
+        transaction,
+      });
+      await Subscription.destroy({
+        where: {
+          userId: event.userId,
+        },
+        transaction,
+      });
+      await ApiKey.destroy({
+        where: {
+          userId: event.userId,
+        },
+        transaction,
+      });
+      await Star.destroy({
+        where: {
+          userId: event.userId,
+        },
+        transaction,
+      });
+    });
+  }
+}