fix(sentinel): prevent restart after Sentinel is disabled (#11298)

tests/Feature/Jobs/CheckAndStartSentinelJobTest.php

@@ -0,0 +1,25 @@
+<?php
+
+use App\Jobs\CheckAndStartSentinelJob;
+use App\Models\Server;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\DB;
+
+uses(RefreshDatabase::class);
+
+it('does not start Sentinel after it has been disabled', function () {
+    DB::table('instance_settings')->insert(['id' => 0]);
+    $user = User::factory()->create();
+    $server = Server::factory()->create([
+        'team_id' => $user->teams()->first()->id,
+    ]);
+    $server->settings->update([
+        'is_metrics_enabled' => false,
+        'is_sentinel_enabled' => false,
+    ]);
+
+    (new CheckAndStartSentinelJob($server))->handle();
+
+    expect((bool) $server->settings->fresh()->is_sentinel_enabled)->toBeFalse();
+});