Add checksum validation for archived media

tests/Feature/Console/MonitorStorageCommandTest.php

@@ -75,4 +75,62 @@ class MonitorStorageCommandTest extends TestCase
         $this->assertSame(2, $snapshot['targets'][0]['assets']['total']);
         $this->assertGreaterThanOrEqual(1, count($snapshot['alerts']));
     }
+
+    public function test_monitor_command_flags_checksum_mismatches(): void
+    {
+        config([
+            'storage-monitor.checksum_validation.enabled' => true,
+            'storage-monitor.checksum_validation.alert_window_minutes' => 60,
+            'storage-monitor.checksum_validation.thresholds.warning' => 1,
+            'storage-monitor.checksum_validation.thresholds.critical' => 5,
+        ]);
+
+        $target = MediaStorageTarget::create([
+            'key' => 'local-ssd',
+            'name' => 'Local SSD',
+            'driver' => 'local',
+            'config' => ['monitor_path' => storage_path('app')],
+            'is_hot' => true,
+            'is_default' => true,
+            'is_active' => true,
+            'priority' => 100,
+        ]);
+
+        $event = Event::factory()->create();
+
+        EventMediaAsset::create([
+            'event_id' => $event->id,
+            'media_storage_target_id' => $target->id,
+            'photo_id' => null,
+            'variant' => 'original',
+            'disk' => 'local-ssd',
+            'path' => 'events/'.$event->id.'/photo.jpg',
+            'size_bytes' => 2048,
+            'status' => 'failed',
+            'meta' => [
+                'checksum_status' => 'mismatch',
+                'checksum_verified_at' => now()->toIso8601String(),
+            ],
+        ]);
+
+        $health = Mockery::mock(StorageHealthService::class);
+        $health->shouldReceive('getCapacity')->andReturn([
+            'status' => 'ok',
+            'total' => 100,
+            'free' => 90,
+            'used' => 10,
+            'percentage' => 10,
+            'path' => storage_path('app'),
+        ]);
+        $this->app->instance(StorageHealthService::class, $health);
+
+        $this->artisan('storage:monitor')
+            ->assertExitCode(0);
+
+        $snapshot = Cache::get('storage:monitor:last');
+
+        $this->assertNotNull($snapshot);
+        $alerts = collect($snapshot['alerts'] ?? []);
+        $this->assertTrue($alerts->contains(fn ($alert) => ($alert['type'] ?? null) === 'checksum_mismatch'));
+    }
 }