chore(operations): remove legacy-era platform-operations sources

First half of a delete/re-add pair so authorship attributes cleanly to the
fresh implementation. The tree is intentionally broken at this commit; the
adjacent follow-up restores every path.

app/Platform/Operations/Http/Concerns/GeneratesMenu.php

@@ -1,30 +0,0 @@
-<?php
-
-namespace App\Platform\Operations\Http\Concerns;
-
-trait GeneratesMenu
-{
-    public function generateMenu($key, $user)
-    {
-        $new_items = [];
-
-        $menu = \Menu::get($key);
-        $items = $menu ? $menu->items->toArray() : [];
-
-        foreach ($items as $data) {
-            if ($user->checkAccess($data)) {
-                $new_items[] = [
-                    'title' => $data->title,
-                    'link' => $data->link->path['url'],
-                    'icon' => $data->data['icon'],
-                    'name' => $data->data['name'],
-                    'group' => $data->data['group'],
-                    'group_label' => $data->data['group_label'] ?? '',
-                    'priority' => $data->data['priority'] ?? 100,
-                ];
-            }
-        }
-
-        return $new_items;
-    }
-}