Studio: make grid checkbox rectangular and commit table changes

app/Console/Commands/PruneMetricSnapshotsCommand.php

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+<?php
+
+namespace App\Console\Commands;
+
+use Illuminate\Console\Command;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Log;
+
+/**
+ * Prune old hourly metric snapshots to prevent unbounded table growth.
+ *
+ * Usage:  php artisan nova:prune-metric-snapshots
+ *         php artisan nova:prune-metric-snapshots --keep-days=7
+ */
+class PruneMetricSnapshotsCommand extends Command
+{
+    protected $signature = 'nova:prune-metric-snapshots
+                            {--keep-days=7 : Keep snapshots for this many days}';
+
+    protected $description = 'Delete old hourly metric snapshots beyond the retention window';
+
+    public function handle(): int
+    {
+        $keepDays = (int) $this->option('keep-days');
+        $cutoff   = now()->subDays($keepDays);
+
+        $deleted = DB::table('artwork_metric_snapshots_hourly')
+            ->where('bucket_hour', '<', $cutoff)
+            ->delete();
+
+        $this->info("Pruned {$deleted} snapshot rows older than {$keepDays} days.");
+
+        Log::info('[nova:prune-metric-snapshots] completed', [
+            'deleted'   => $deleted,
+            'keep_days' => $keepDays,
+        ]);
+
+        return self::SUCCESS;
+    }
+}