refactor(ui): burn down map storage hot-path bypasses

modules/ui_map_runtime/include/ui_map_runtime/map_tiles/map_tile_async_runtime.h

@@ -44,6 +44,15 @@ struct LoadTileCommand
 
 using MapTileEventKind = MapTileAsyncEventKind;
 
+struct MapTileDecodedImage
+{
+    void* native_handle = nullptr;
+    void (*release)(void*) = nullptr;
+    uint16_t width = 0;
+    uint16_t height = 0;
+    std::size_t data_size = 0;
+};
+
 class MapTileEvent
 {
   public:
@@ -53,6 +62,7 @@ class MapTileEvent
     MapTileRef tile{};
     MapTileFormat format = MapTileFormat::Unknown;
     MapTilePayload payload{};
+    MapTileDecodedImage decoded{};
     std::size_t payload_size = 0;
     int32_t error = 0;
 };