Reorganize directory layout: editor panels/, grouped shaders, drop stale header

- App/editor: move 7 panels into panels/ (Editor core stays at root)
- shaders/: group into pbr/ post/ debug/ env/ (runtime load paths updated)
- Delete outdated duplicate Engine/src/Renderer/VulkanAssetUploader.h

App/editor/panels/StatsPanel.h

@@ -0,0 +1,19 @@
+//
+// StatsPanel：遥测与全局设置面板（原 Scene Debug 拆入）。
+//
+// Camera 位姿 / Rendering 开关 / Environment(IBL+DebugView+ClearColor) /
+// GPU Timings / Frame(VSync、fps)。KeyLight、动画 clip、gun scale
+// 等沙盒特例编辑已泛化进 Inspector，此处不再重复。
+//
+
+#ifndef HELLOVULKAN_STATSPANEL_H
+#define HELLOVULKAN_STATSPANEL_H
+
+#include "EditorContext.h"
+
+class StatsPanel {
+public:
+    void Draw(const EditorContext& ctx);
+};
+
+#endif //HELLOVULKAN_STATSPANEL_H