[ADVAPP-1097]: Add migration to purge timeline items related to engag…

…ements (#1211)

* Add migration to purge timeline items related to engagements

Signed-off-by: Kevin Ullyott <kevin.ullyott@canyongbs.com>

* chore: fix enforcement of copyright on all files

---------

Signed-off-by: Kevin Ullyott <kevin.ullyott@canyongbs.com>

app-modules/engagement/database/migrations/2024_12_27_002830_purge_timeline_items_related_to_enagements.php

@@ -0,0 +1,53 @@
+<?php
+
+/*
+<COPYRIGHT>
+
+    Copyright © 2016-2024, Canyon GBS LLC. All rights reserved.
+
+    Advising App™ is licensed under the Elastic License 2.0. For more details,
+    see https://github.com/canyongbs/advisingapp/blob/main/LICENSE.
+
+    Notice:
+
+    - You may not provide the software to third parties as a hosted or managed
+      service, where the service provides users with access to any substantial set of
+      the features or functionality of the software.
+    - You may not move, change, disable, or circumvent the license key functionality
+      in the software, and you may not remove or obscure any functionality in the
+      software that is protected by the license key.
+    - You may not alter, remove, or obscure any licensing, copyright, or other notices
+      of the licensor in the software. Any use of the licensor’s trademarks is subject
+      to applicable law.
+    - Canyon GBS LLC respects the intellectual property rights of others and expects the
+      same in return. Canyon GBS™ and Advising App™ are registered trademarks of
+      Canyon GBS LLC, and we are committed to enforcing and protecting our trademarks
+      vigorously.
+    - The software solution, including services, infrastructure, and code, is offered as a
+      Software as a Service (SaaS) by Canyon GBS LLC.
+    - Use of this software implies agreement to the license terms and conditions as stated
+      in the Elastic License 2.0.
+
+    For more information or inquiries please visit our website at
+    https://www.canyongbs.com or contact us via email at legal@canyongbs.com.
+
+</COPYRIGHT>
+*/
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Support\Facades\DB;
+
+return new class () extends Migration {
+    public function up(): void
+    {
+        DB::table('timelines')
+            ->where('entity_type', 'engagement')
+            ->orWhere('entity_type', 'outbound_deliverable')
+            ->delete();
+    }
+
+    public function down(): void
+    {
+        // No need to rollback
+    }
+};