Add attachment thumbnails and ACP refinements

app/Http/Controllers/ThreadController.php

@@ -5,6 +5,7 @@ namespace App\Http\Controllers;
 use App\Models\Forum;
 use App\Models\Thread;
 use App\Actions\BbcodeFormatter;
+use App\Models\Setting;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\DB;
@@ -207,6 +208,10 @@ class ThreadController extends Controller
                         'mime_type' => $attachment->mime_type,
                         'size_bytes' => $attachment->size_bytes,
                         'download_url' => "/api/attachments/{$attachment->id}/download",
+                        'thumbnail_url' => $attachment->thumbnail_path
+                            ? "/api/attachments/{$attachment->id}/thumbnail"
+                            : null,
+                        'is_image' => str_starts_with((string) $attachment->mime_type, 'image/'),
                         'created_at' => $attachment->created_at?->toIso8601String(),
                     ])
                     ->values()
@@ -250,13 +255,22 @@ class ThreadController extends Controller
             $entry = $map[$key];
             $url = $entry['url'];
             $mime = $entry['mime'] ?? '';
-            if (str_starts_with($mime, 'image/')) {
+            if (str_starts_with($mime, 'image/') && $this->displayImagesInline()) {
                 return "[img]{$url}[/img]";
             }
             return "[url={$url}]{$rawName}[/url]";
         }, $body) ?? $body;
     }
 
+    private function displayImagesInline(): bool
+    {
+        $value = Setting::query()->where('key', 'attachments.display_images_inline')->value('value');
+        if ($value === null) {
+            return true;
+        }
+        return in_array(strtolower($value), ['1', 'true', 'yes', 'on'], true);
+    }
+
     private function resolveGroupColor(?\App\Models\User $user): ?string
     {
         if (!$user) {