Update guest PWA v2 UI and likes

app/Http/Controllers/Api/EventPublicController.php

@@ -2985,6 +2985,54 @@ class EventPublicController extends BaseController
         return response()->json(['liked' => true, 'likes_count' => $count]);
     }
 
+    public function unlike(Request $request, int $id)
+    {
+        $deviceId = (string) $request->header('X-Device-Id', 'anon');
+        $deviceId = substr(preg_replace('/[^a-zA-Z0-9_-]/', '', $deviceId), 0, 64);
+        if ($deviceId === '') {
+            $deviceId = 'anon';
+        }
+
+        $photo = DB::table('photos')
+            ->join('events', 'photos.event_id', '=', 'events.id')
+            ->where('photos.id', $id)
+            ->where('events.status', 'published')
+            ->first(['photos.id', 'photos.event_id']);
+        if (! $photo) {
+            return ApiError::response(
+                'photo_not_found',
+                'Photo Not Found',
+                'Photo not found or event not public.',
+                Response::HTTP_NOT_FOUND,
+                ['photo_id' => $id]
+            );
+        }
+
+        $exists = DB::table('photo_likes')->where('photo_id', $id)->where('guest_name', $deviceId)->exists();
+        if (! $exists) {
+            $count = (int) DB::table('photos')->where('id', $id)->value('likes_count');
+
+            return response()->json(['liked' => false, 'likes_count' => $count]);
+        }
+
+        DB::beginTransaction();
+        try {
+            DB::table('photo_likes')->where('photo_id', $id)->where('guest_name', $deviceId)->delete();
+            DB::table('photos')->where('id', $id)->update([
+                'likes_count' => DB::raw('case when likes_count > 0 then likes_count - 1 else 0 end'),
+                'updated_at' => now(),
+            ]);
+            DB::commit();
+        } catch (\Throwable $e) {
+            DB::rollBack();
+            Log::warning('unlike failed', ['error' => $e->getMessage()]);
+        }
+
+        $count = (int) DB::table('photos')->where('id', $id)->value('likes_count');
+
+        return response()->json(['liked' => false, 'likes_count' => $count]);
+    }
+
     public function upload(Request $request, string $token)
     {
         $result = $this->resolvePublishedEvent($request, $token, ['id']);