feat(engine): 添加编辑器模式标志控制编辑器UI显示 (#274)

* feat(engine): 添加编辑器模式标志控制编辑器UI显示

- 在 Rust 引擎中添加 isEditor 标志，控制网格、gizmos、坐标轴指示器的显示
- 运行时模式下自动隐藏所有编辑器专用 UI
- 编辑器预览和浏览器运行时通过 setEditorMode(false) 禁用编辑器 UI
- 添加 Scene.isEditorMode 延迟组件生命周期回调，直到 begin() 调用
- 修复用户组件注册到 Core ComponentRegistry 以支持序列化
- 修复 Run in Browser 时用户组件加载问题

* fix: 复制引擎模块的类型定义文件到 dist/engine

* fix: 修复用户项目 tsconfig paths 类型定义路径

- 从 module.json 读取实际包名而不是使用目录名
- 修复 .d.ts 文件复制逻辑，支持 .mjs 扩展名

packages/ecs-engine-bindgen/src/core/EngineBridge.ts

@@ -598,6 +598,28 @@ export class EngineBridge implements IEngineBridge {
         this.getEngine().setShowGizmos(show);
     }
 
+    /**
+     * Set editor mode.
+     * 设置编辑器模式。
+     *
+     * When false (runtime mode), editor-only UI like grid, gizmos,
+     * and axis indicator are automatically hidden.
+     * 当为 false（运行时模式）时，编辑器专用 UI 会自动隐藏。
+     */
+    setEditorMode(isEditor: boolean): void {
+        if (!this.initialized) return;
+        this.getEngine().setEditorMode(isEditor);
+    }
+
+    /**
+     * Get editor mode.
+     * 获取编辑器模式。
+     */
+    isEditorMode(): boolean {
+        if (!this.initialized) return true;
+        return this.getEngine().isEditorMode();
+    }
+
     // ===== Multi-viewport API =====
     // ===== 多视口 API =====
 

packages/ecs-engine-bindgen/src/wasm/es_engine.d.ts

@@ -117,6 +117,11 @@ export class GameEngine {
    * The shader ID for referencing this shader | 用于引用此着色器的ID
    */
   compileShader(vertex_source: string, fragment_source: string): number;
+  /**
+   * Get editor mode.
+   * 获取编辑器模式。
+   */
+  isEditorMode(): boolean;
   /**
    * Render sprites as overlay (without clearing screen).
    * 渲染精灵作为叠加层（不清除屏幕）。
@@ -156,6 +161,15 @@ export class GameEngine {
    * * `r`, `g`, `b`, `a` - Color components (0.0-1.0) | 颜色分量 (0.0-1.0)
    */
   setClearColor(r: number, g: number, b: number, a: number): void;
+  /**
+   * Set editor mode.
+   * 设置编辑器模式。
+   *
+   * When false (runtime mode), editor-only UI like grid, gizmos,
+   * and axis indicator are automatically hidden.
+   * 当为 false（运行时模式）时，编辑器专用 UI（如网格、gizmos、坐标轴指示器）会自动隐藏。
+   */
+  setEditorMode(is_editor: boolean): void;
   /**
    * Set gizmo visibility.
    * 设置辅助工具可见性。
@@ -374,6 +388,7 @@ export interface InitOutput {
   readonly gameengine_hasMaterial: (a: number, b: number) => number;
   readonly gameengine_hasShader: (a: number, b: number) => number;
   readonly gameengine_height: (a: number) => number;
+  readonly gameengine_isEditorMode: (a: number) => number;
   readonly gameengine_isKeyDown: (a: number, b: number, c: number) => number;
   readonly gameengine_loadTexture: (a: number, b: number, c: number, d: number) => [number, number];
   readonly gameengine_loadTextureByPath: (a: number, b: number, c: number) => [number, number, number];
@@ -389,6 +404,7 @@ export interface InitOutput {
   readonly gameengine_setActiveViewport: (a: number, b: number, c: number) => number;
   readonly gameengine_setCamera: (a: number, b: number, c: number, d: number, e: number) => void;
   readonly gameengine_setClearColor: (a: number, b: number, c: number, d: number, e: number) => void;
+  readonly gameengine_setEditorMode: (a: number, b: number) => void;
   readonly gameengine_setMaterialBlendMode: (a: number, b: number, c: number) => number;
   readonly gameengine_setMaterialColor: (a: number, b: number, c: number, d: number, e: number, f: number, g: number, h: number) => number;
   readonly gameengine_setMaterialFloat: (a: number, b: number, c: number, d: number, e: number) => number;