Add animation controller system, material assets and skeleton visualization

- .animctrl state machine asset (params/transitions/blend trees, 1D+2D
  directional blending) with Unity Animator-style editor panel: state
  list, transitions, params, directional pad preview driving live
  CrossFade on the selected entity
- Split animation evaluation out of SceneRenderer into
  AnimationSystem/AnimationEvaluator; skin palettes with rest-pose
  fallback and blend-weight epsilon filtering
- MaterialAsset (.material) with reload-safe preview tile pool
  (DropMaterial clears dirty refs before instance destruction)
- EditorGizmoPass skeleton wires + viewport joint overlay; camera
  projection rework (baked Vulkan Y-flip, ortho support)
- Editor/game build split via HELLOVULKAN_EDITOR option

App/editor/ControllerEditorPanel.h

@@ -0,0 +1,58 @@
+//
+// ControllerEditorPanel：动画控制器编辑器窗口（Unity Animator 状态机
+// 面板范式，交互对齐 MaterialEditorPanel 的"指派/编辑分离"）。
+//
+// Details 的 Controller 区只做指派（槽/Create/双击打开本面板）；
+// 结构编辑全在这里：
+//   - Preview：方向盘（2D 混合树可视化驱动）+ 权重实时读出，拖动
+//     SetFloat 到当前选中实体（Controller 模式）实时预览
+//   - States：状态列表（增删/重命名/entry），选中状态详情 = 播放
+//     参数 + 混合树类型 + children 逐行编辑（clip 指定/定位/删除）
+//   - Transitions / Params：列表编辑，cond 字符串 Enter 就地编译
+//
+// 编辑直接写缓存资产实例（System 下一帧生效，无需保存）；Save 落盘
+// + ReloadController 重编译（实例换新，本面板每帧重解析不持指针）。
+//
+
+#ifndef HELLOVULKAN_CONTROLLEREDITORPANEL_H
+#define HELLOVULKAN_CONTROLLEREDITORPANEL_H
+
+#include "EditorContext.h"
+
+#include <Engine/Core/Types.h>
+
+#include <string>
+#include <vector>
+
+// .animctrl 拖拽 payload（AssetBrowser → Details Controller 槽指派）
+inline constexpr char kControllerDragPayload[] = "CTRL_PATH";
+
+class ControllerEditorPanel {
+public:
+    // 打开 .animctrl 资产（Details 槽位 Edit 按钮 / Content Browser
+    // 双击入口）
+    void Open(const std::string& path)
+    {
+        m_Path = path;
+        m_Open = true;
+        m_SelState = 0;
+    }
+    bool IsOpen() const { return m_Open; }
+    void Draw(const EditorContext& ctx);
+
+private:
+    void DrawPreview(const EditorContext& ctx);
+    void DrawStates(const EditorContext& ctx,
+                    Engine::Animation::AnimationController* ctrl);
+    void DrawTransitions(const EditorContext& ctx,
+                         Engine::Animation::AnimationController* ctrl);
+    void DrawParams(const EditorContext& ctx,
+                    Engine::Animation::AnimationController* ctrl);
+
+    bool m_Open = false;
+    std::string m_Path;
+    int m_SelState = 0;    // 选中状态（StateOrder 下标）
+    std::vector<char> m_CondBuf;   // cond 输入缓冲（按行复用）
+};
+
+#endif //HELLOVULKAN_CONTROLLEREDITORPANEL_H