feat: add reusable gallery carousel and ranking feed infrastructure

scripts/check_stats2.php

@@ -0,0 +1,35 @@
+<?php
+require __DIR__ . '/../vendor/autoload.php';
+$app = require_once __DIR__ . '/../bootstrap/app.php';
+$app->make(\Illuminate\Contracts\Console\Kernel::class)->bootstrap();
+
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Redis;
+
+$artworkId = 69478;
+
+$stats = DB::table('artwork_stats')->where('artwork_id', $artworkId)->first();
+echo "artwork_stats row: " . json_encode($stats) . PHP_EOL;
+
+$events = DB::table('artwork_view_events')->where('artwork_id', $artworkId)->count();
+echo "artwork_view_events for {$artworkId}: {$events}" . PHP_EOL;
+
+$latest = DB::table('artwork_view_events')->latest('viewed_at')->take(5)->get(['artwork_id', 'viewed_at', 'session_hash']);
+echo "Latest view events (any artwork): " . json_encode($latest) . PHP_EOL;
+
+// Check Redis queue depth
+try {
+    $queueLen = Redis::llen('artwork_stats:deltas');
+    echo "Redis artwork_stats:deltas queue length: {$queueLen}" . PHP_EOL;
+
+    if ($queueLen > 0) {
+        $peek = Redis::lrange('artwork_stats:deltas', 0, 2);
+        echo "First entries: " . json_encode($peek) . PHP_EOL;
+    }
+} catch (\Exception $e) {
+    echo "Redis error: " . $e->getMessage() . PHP_EOL;
+}
+
+// Check artwork exists
+$artwork = DB::table('artworks')->where('id', $artworkId)->first(['id', 'title', 'status', 'user_id']);
+echo "Artwork: " . json_encode($artwork) . PHP_EOL;