fix(cleanup): delete old rows in batches and report the real count

cleanup:database used orderBy()->skip(10)->delete(). Laravel drops the offset
in a DELETE, so it deleted all old rows anyway, and the count query with the
offset printed 0 on PostgreSQL. Count without the offset, delete in batches of
1000 rows so a large table is not locked by one long DELETE, and write the
output through the command so it is captured.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/Feature/CleanupDatabaseCommandTest.php

@@ -0,0 +1,36 @@
+<?php
+
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Spatie\Activitylog\Models\Activity;
+
+uses(RefreshDatabase::class);
+
+function cleanupTestActivity(int $ageInDays): Activity
+{
+    $activity = activity()->withProperties(['type' => 'inline', 'status' => 'finished'])->event('inline')->log('[]');
+    Activity::query()->whereKey($activity->id)->toBase()->update(['created_at' => now()->subDays($ageInDays)]);
+
+    return $activity;
+}
+
+beforeEach(function () {
+    $this->old = collect(range(1, 12))->map(fn () => cleanupTestActivity(61));
+    $this->recent = collect(range(1, 2))->map(fn () => cleanupTestActivity(5));
+});
+
+it('reports the real number of old activities in a dry run and deletes nothing', function () {
+    $this->artisan('cleanup:database')
+        ->expectsOutputToContain('Delete 12 entries from activity_log.')
+        ->assertSuccessful();
+
+    expect(Activity::query()->count())->toBe(14);
+});
+
+it('deletes all activities older than the retention and keeps newer ones', function () {
+    $this->artisan('cleanup:database --yes')
+        ->expectsOutputToContain('Delete 12 entries from activity_log.')
+        ->assertSuccessful();
+
+    expect(Activity::query()->pluck('id')->sort()->values()->all())
+        ->toBe($this->recent->pluck('id')->sort()->values()->all());
+});