Return newly added customer note as array in API response

- Updated `addNote` in `users_o` to return the `customer_notes_o` object.
- Modified `customerNotes` endpoint to include note details in the success response.
- Introduced `asArray` method in `customer_notes_o` for structured API responses.

services/nginx/app/objects/users_o.php

@@ -389,13 +389,14 @@ class users_o extends db
         return $customer_notes->getCustomerNotesAsArray($this->id);
     }
 
-    public function addNote($customer_id, $note, $cashier_id): void
+    public function addNote($customer_id, $note, $cashier_id): customer_notes_o
     {
         global $db;
         // Create the customer notes object
         $customer_notes = new customer_notes_o();
         // Add the note
         $customer_notes->add($customer_id, $note, $cashier_id);
+        return $customer_notes;
     }
 
     public function deleteNote(int $note_id): void