feat: Introduce Dungeon Object Emulator Preview and Object Drawing Enhancements

- Added DungeonObjectEmulatorPreview for rendering dungeon objects using the SNES emulator, allowing real-time visualization of object graphics.
- Implemented ObjectDrawer class to handle drawing of various object types to background buffers, utilizing game-specific patterns.
- Updated DungeonCanvasViewer to integrate object rendering and improve background layer management.
- Enhanced DungeonEditorV2 to support the new emulator preview, providing a more interactive editing experience.
- Improved error handling and logging for better debugging during object rendering operations.

src/app/zelda3/dungeon/object_drawer.h

@@ -0,0 +1,84 @@
+#ifndef YAZE_APP_ZELDA3_DUNGEON_OBJECT_DRAWER_H
+#define YAZE_APP_ZELDA3_DUNGEON_OBJECT_DRAWER_H
+
+#include <vector>
+
+#include "absl/status/status.h"
+#include "app/gfx/background_buffer.h"
+#include "app/gfx/snes_tile.h"
+#include "app/rom.h"
+#include "app/zelda3/dungeon/room_object.h"
+
+namespace yaze {
+namespace zelda3 {
+
+/**
+ * @brief Draws dungeon objects to background buffers using game patterns
+ * 
+ * This class interprets object IDs and draws them to BG1/BG2 buffers
+ * using the patterns extracted from the game's drawing routines.
+ * 
+ * Architecture:
+ * 1. Load tile data from ROM for the object
+ * 2. Determine drawing pattern (rightward, downward, diagonal, special)
+ * 3. Write tiles to BackgroundBuffer according to pattern
+ * 4. Handle size bytes for repeating patterns
+ */
+class ObjectDrawer {
+ public:
+  explicit ObjectDrawer(Rom* rom);
+  
+  /**
+   * @brief Draw a room object to background buffers
+   * @param object The object to draw
+   * @param bg1 Background layer 1 buffer
+   * @param bg2 Background layer 2 buffer
+   * @return Status of the drawing operation
+   */
+  absl::Status DrawObject(const RoomObject& object,
+                         gfx::BackgroundBuffer& bg1,
+                         gfx::BackgroundBuffer& bg2);
+  
+  /**
+   * @brief Draw all objects in a room
+   * @param objects Vector of room objects
+   * @param bg1 Background layer 1 buffer
+   * @param bg2 Background layer 2 buffer
+   * @return Status of the drawing operation
+   */
+  absl::Status DrawObjectList(const std::vector<RoomObject>& objects,
+                              gfx::BackgroundBuffer& bg1,
+                              gfx::BackgroundBuffer& bg2);
+
+ private:
+  // Pattern-specific drawing methods
+  void DrawRightwards2x2(const RoomObject& obj, gfx::BackgroundBuffer& bg, 
+                         const gfx::Tile16& tile);
+  void DrawDownwards2x2(const RoomObject& obj, gfx::BackgroundBuffer& bg,
+                        const gfx::Tile16& tile);
+  void DrawDiagonalAcute(const RoomObject& obj, gfx::BackgroundBuffer& bg,
+                         const gfx::Tile16& tile);
+  void DrawDiagonalGrave(const RoomObject& obj, gfx::BackgroundBuffer& bg,
+                         const gfx::Tile16& tile);
+  void Draw1x1Solid(const RoomObject& obj, gfx::BackgroundBuffer& bg,
+                    const gfx::Tile16& tile);
+  void Draw4x4Block(const RoomObject& obj, gfx::BackgroundBuffer& bg,
+                    const gfx::Tile16& tile);
+  
+  // Utility methods
+  void WriteTile16(gfx::BackgroundBuffer& bg, int tile_x, int tile_y,
+                   const gfx::Tile16& tile);
+  bool IsValidTilePosition(int tile_x, int tile_y) const;
+  
+  Rom* rom_;
+  
+  // Canvas dimensions in tiles (64x64 = 512x512 pixels)
+  static constexpr int kMaxTilesX = 64;
+  static constexpr int kMaxTilesY = 64;
+};
+
+}  // namespace zelda3
+}  // namespace yaze
+
+#endif  // YAZE_APP_ZELDA3_DUNGEON_OBJECT_DRAWER_H
+