feat: tick planner, delivery job, scheduler and purge

Also: test uses disabled channels instead of deleting them (FK cascade); ChannelRegistry no longer final so tests can extend it (controller ruling).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BCrwHHnGCB5XH968Nxokqw

core/routes/console.php

@@ -1,8 +1,6 @@
 <?php
 
-use Illuminate\Foundation\Inspiring;
-use Illuminate\Support\Facades\Artisan;
+use Illuminate\Support\Facades\Schedule;
 
-Artisan::command('inspire', function () {
-    $this->comment(Inspiring::quote());
-})->purpose('Display an inspiring quote');
+Schedule::command('hado:tick')->everyMinute()->withoutOverlapping()->runInBackground();
+Schedule::command('hado:purge')->dailyAt('04:00');