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/Middleware/CronJobMiddleware.php

@@ -1,24 +0,0 @@
-<?php
-
-namespace App\Platform\Operations\Http\Middleware;
-
-use Closure;
-use Illuminate\Http\Request;
-use Symfony\Component\HttpFoundation\Response;
-
-class CronJobMiddleware
-{
-    /**
-     * Handle an incoming request.
-     *
-     * @return mixed
-     */
-    public function handle(Request $request, Closure $next): Response
-    {
-        if ($request->header('x-authorization-token') && $request->header('x-authorization-token') == config('services.cron_job.auth_token')) {
-            return $next($request);
-        }
-
-        return response()->json(['unauthorized'], 401);
-    }
-}