feat: show shared items in main Library view

Items explicitly shared with a user now appear in the Library root
alongside public items, instead of only in "Shared with Me." Adds a
"Shared with you" label on items shared with the current user.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: scottgrayson

src/Resources/LibraryItemResource.php

@@ -167,6 +167,18 @@ public static function table(Table $table): Table
                     })
                     ->icon(fn (?LibraryItem $record): string => $record?->getDisplayIcon() ?? 'heroicon-o-document')
                     ->iconPosition('before')
+                    ->description(function (?LibraryItem $record): ?string {
+                        $user = auth()->user();
+                        if (! $user || ! $record) {
+                            return null;
+                        }
+
+                        if ($record->created_by !== $user->id && $record->permissions()->where('user_id', $user->id)->exists()) {
+                            return 'Shared with you';
+                        }
+
+                        return null;
+                    })
                     ->url(function (?LibraryItem $record): ?string {
                         if (! $record) {
                             return null;

src/Resources/Pages/ListLibraryItems.php

@@ -240,6 +240,11 @@ protected function getTableQuery(): \Illuminate\Database\Eloquent\Builder
                     // Creators can see their own items (even if private)
                     if ($user) {
                         $q->orWhere('created_by', $user->id);
+
+                        // Users can see items explicitly shared with them
+                        $q->orWhereHas('permissions', function ($pq) use ($user) {
+                            $pq->where('user_id', $user->id);
+                        });
                     }
                 })
                 ->where('name', 'not like', "%'s Personal Folder");