Allow artworks to have one primary category and extra secondaries.

Keep artwork_category as membership, store a deterministic primary_category_id, and let upload plus studio pick up to five additional same-type categories without changing canonical URLs.

app/Services/GroupArtworkReviewService.php

@@ -10,6 +10,7 @@ use App\Models\Group;
 use App\Jobs\IndexArtworkJob;
 use App\Models\Tag;
 use App\Models\User;
+use App\Services\Artworks\ArtworkCategoryService;
 use Illuminate\Pagination\LengthAwarePaginator;
 use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Log;
@@ -23,6 +24,7 @@ class GroupArtworkReviewService
         private readonly GroupHistoryService $history,
         private readonly NotificationService $notifications,
         private readonly GroupMembershipService $memberships,
+        private readonly ArtworkCategoryService $artworkCategories,
     ) {
     }
 
@@ -108,6 +110,10 @@ class GroupArtworkReviewService
             'group_reviewed_at' => now(),
             'group_review_notes' => $notes,
             'is_approved' => true,
+            'approval_source' => 'moderator',
+            'moderated_at' => now(),
+            'moderated_by' => $actor->id,
+            'moderation_note' => $notes,
             'artwork_status' => 'published',
             'published_at' => now(),
             'publish_at' => null,
@@ -363,9 +369,20 @@ class GroupArtworkReviewService
         $artwork->uploaded_by_user_id = $artwork->uploaded_by_user_id ?: (int) $actor->id;
         $artwork->primary_author_user_id = $artwork->primary_author_user_id ?: (int) $actor->id;
 
-        $categoryId = isset($validated['category']) ? (int) $validated['category'] : null;
-        if ($categoryId > 0 && Category::query()->where('id', $categoryId)->exists()) {
-            $artwork->categories()->sync([$categoryId]);
+        $categoryId = isset($validated['primary_category_id'])
+            ? (int) $validated['primary_category_id']
+            : (isset($validated['category']) ? (int) $validated['category'] : null);
+        $secondaryCategoryIds = array_key_exists('secondary_category_ids', $validated)
+            ? array_values(array_map('intval', (array) $validated['secondary_category_ids']))
+            : [];
+        if ($categoryId > 0) {
+            $this->artworkCategories->sync(
+                $artwork,
+                $categoryId,
+                $secondaryCategoryIds,
+                'user',
+                false,
+            );
         }
 
         if (array_key_exists('tags', $validated) && is_array($validated['tags'])) {
@@ -395,4 +412,4 @@ class GroupArtworkReviewService
     {
         IndexArtworkJob::dispatch((int) $artwork->id);
     }
-}
+}