Refactor database object trait and improve data handling

Added `delete`, `restore`, and other utility methods to enhance CRUD operations, including support for soft deletes. Introduced `objectChanged` hooks across objects for better cache or event handling, ensuring scalability and maintainability. Refactored and standardized object property handling while restructuring related methods.

services/nginx/app/objects/bookings_o.php

@@ -34,6 +34,12 @@ class bookings_o extends db
         $this->setTable('bookings');
     }
 
+    public function objectChanged(): void
+    {
+        // Clear the cache
+        redis->clear_department_booking_count($this->department->value());
+    }
+
     public function getCustomerBookingsPaginated(int $customer_number, int $page = 1, int $limit = 10, array $order = ['id' => 'DESC'], string $search = null, array $filters = null): array
     {
         global /** @var response $response */