feat: artwork page carousels, recommendations, avatars & fixes

- Infinite loop carousels for Similar Artworks & Trending rails
- Mouse wheel horizontal scrolling on both carousels
- Author avatar shown on hover in RailCard (similar + trending)
- Removed "View" badge from RailCard hover overlay
- Added `id` to Meilisearch filterable attributes
- Auto-prepend Scout prefix in meilisearch:configure-index command
- Added author name + avatar to Similar Artworks API response
- Added avatar_url to ArtworkListResource author object
- Added direct /art/{id}/{slug} URL to ArtworkListResource
- Fixed race condition: Similar Artworks no longer briefly shows trending items
- Fixed user_profiles eager load (user_id primary key, not id)
- Bumped /api/art/{id}/similar rate limit to 300/min
- Removed decorative heart icons from tag pills
- Moved ReactionBar under artwork description

scripts/check_reply_tree.php

@@ -0,0 +1,33 @@
+<?php
+require __DIR__ . '/../vendor/autoload.php';
+$app = require __DIR__ . '/../bootstrap/app.php';
+$app->make(Illuminate\Contracts\Console\Kernel::class)->bootstrap();
+
+$rows = App\Models\ArtworkComment::where('artwork_id', 10)
+    ->whereNotNull('parent_id')
+    ->select('id', 'parent_id', 'content')
+    ->orderByDesc('id')
+    ->limit(15)
+    ->get();
+
+foreach ($rows as $r) {
+    echo "id={$r->id}  parent_id={$r->parent_id}  content=" . mb_substr($r->content, 0, 40) . PHP_EOL;
+}
+
+echo "\n--- Tree test (recursive eager-load) ---\n";
+$top = App\Models\ArtworkComment::with(['approvedReplies'])
+    ->where('id', 175742)
+    ->get();
+
+function printTree($comments, $indent = 0) {
+    foreach ($comments as $c) {
+        $prefix = str_repeat('  ', $indent);
+        $replies = $c->relationLoaded('approvedReplies') ? $c->approvedReplies : collect();
+        echo "{$prefix}[{$c->id}] " . mb_substr($c->content, 0, 40) . " ({$replies->count()} replies)\n";
+        if ($replies->count()) {
+            printTree($replies, $indent + 1);
+        }
+    }
+}
+
+printTree($top);