refactor: reorganize package structure and decouple framework packages (#338)

* refactor: reorganize package structure and decouple framework packages

## Package Structure Reorganization
- Reorganized 55 packages into categorized subdirectories:
  - packages/framework/ - Generic framework (Laya/Cocos compatible)
  - packages/engine/ - ESEngine core modules
  - packages/rendering/ - Rendering modules (WASM dependent)
  - packages/physics/ - Physics modules
  - packages/streaming/ - World streaming
  - packages/network-ext/ - Network extensions
  - packages/editor/ - Editor framework and plugins
  - packages/rust/ - Rust WASM engine
  - packages/tools/ - Build tools and SDK

## Framework Package Decoupling
- Decoupled behavior-tree and blueprint packages from ESEngine dependencies
- Created abstracted interfaces (IBTAssetManager, IBehaviorTreeAssetContent)
- ESEngine-specific code moved to esengine/ subpath exports
- Framework packages now usable with Cocos/Laya without ESEngine

## CI Configuration
- Updated CI to only type-check and lint framework packages
- Added type-check:framework and lint:framework scripts

## Breaking Changes
- Package import paths changed due to directory reorganization
- ESEngine integrations now use subpath imports (e.g., '@esengine/behavior-tree/esengine')

* fix: update es-engine file path after directory reorganization

* docs: update README to focus on framework over engine

* ci: only build framework packages, remove Rust/WASM dependencies

* fix: remove esengine subpath from behavior-tree and blueprint builds

ESEngine integration code will only be available in full engine builds.
Framework packages are now purely engine-agnostic.

* fix: move network-protocols to framework, build both in CI

* fix: update workflow paths from packages/core to packages/framework/core

* fix: exclude esengine folder from type-check in behavior-tree and blueprint

* fix: update network tsconfig references to new paths

* fix: add test:ci:framework to only test framework packages in CI

* fix: only build core and math npm packages in CI

* fix: exclude test files from CodeQL and fix string escaping security issue

packages/rendering/mesh-3d/src/Mesh3DRuntimeModule.ts

@@ -0,0 +1,115 @@
+/**
+ * Mesh3D Runtime Module - Plugin for 3D mesh rendering.
+ * Mesh3D 运行时模块 - 3D 网格渲染插件。
+ */
+
+import type { IComponentRegistry, IScene } from '@esengine/ecs-framework';
+import type { IRuntimeModule, IRuntimePlugin, ModuleManifest, SystemContext } from '@esengine/engine-core';
+import { EngineBridgeToken } from '@esengine/ecs-engine-bindgen';
+import { AssetManagerToken } from '@esengine/asset-system';
+import { MeshComponent } from './MeshComponent';
+import { Animation3DComponent } from './Animation3DComponent';
+import { SkeletonComponent } from './SkeletonComponent';
+import { MeshRenderSystem } from './systems/MeshRenderSystem';
+import { MeshAssetLoaderSystem } from './systems/MeshAssetLoaderSystem';
+import { Animation3DSystem } from './systems/Animation3DSystem';
+import { SkeletonBakingSystem } from './systems/SkeletonBakingSystem';
+import { MeshRenderSystemToken } from './tokens';
+
+export type { SystemContext, ModuleManifest, IRuntimeModule, IRuntimePlugin };
+
+// Re-export tokens
+// 重新导出令牌
+export { MeshRenderSystemToken } from './tokens';
+
+/**
+ * Runtime module for 3D mesh rendering.
+ * 3D 网格渲染的运行时模块。
+ */
+class Mesh3DRuntimeModule implements IRuntimeModule {
+    registerComponents(registry: IComponentRegistry): void {
+        registry.register(MeshComponent);
+        registry.register(Animation3DComponent);
+        registry.register(SkeletonComponent);
+    }
+
+    createSystems(scene: IScene, context: SystemContext): void {
+        // Get engine bridge from services
+        // 从服务获取引擎桥接
+        const bridge = context.services.get(EngineBridgeToken) ?? null;
+        if (!bridge) {
+            console.warn('[Mesh3D] EngineBridge not found, MeshRenderSystem will be disabled');
+        }
+
+        // Get asset manager
+        // 获取资产管理器
+        const assetManager = context.services.get(AssetManagerToken);
+
+        // Create asset loader system
+        // 创建资产加载器系统
+        const loaderSystem = new MeshAssetLoaderSystem();
+        if (assetManager) {
+            loaderSystem.setAssetManager(assetManager);
+        } else {
+            console.warn('[Mesh3D] AssetManager not found, mesh loading will be disabled');
+        }
+        scene.addSystem(loaderSystem);
+
+        // Create animation system (runs before rendering to update bone transforms)
+        // 创建动画系统（在渲染前运行以更新骨骼变换）
+        const animationSystem = new Animation3DSystem();
+        scene.addSystem(animationSystem);
+
+        // Create skeleton baking system (computes final bone matrices)
+        // 创建骨骼烘焙系统（计算最终骨骼矩阵）
+        const skeletonSystem = new SkeletonBakingSystem();
+        scene.addSystem(skeletonSystem);
+
+        // Create render system with bridge
+        // 使用桥接创建渲染系统
+        const renderSystem = new MeshRenderSystem(bridge);
+
+        // Add to scene
+        // 添加到场景
+        scene.addSystem(renderSystem);
+
+        // Register service
+        // 注册服务
+        context.services.register(MeshRenderSystemToken, renderSystem);
+    }
+}
+
+/**
+ * Module manifest.
+ * 模块清单。
+ */
+const manifest: ModuleManifest = {
+    id: 'mesh-3d',
+    name: '@esengine/mesh-3d',
+    displayName: 'Mesh 3D',
+    version: '1.0.0',
+    description: '3D mesh rendering with GLTF/GLB support',
+    category: 'Rendering',
+    icon: 'Box',
+    isCore: false,
+    defaultEnabled: true,
+    isEngineModule: true,
+    canContainContent: true,
+    dependencies: ['core', 'math', 'asset-system'],
+    exports: {
+        components: ['MeshComponent', 'Animation3DComponent', 'SkeletonComponent']
+    },
+    editorPackage: '@esengine/mesh-3d-editor',
+    requiresWasm: true
+};
+
+/**
+ * Mesh3D Plugin export.
+ * Mesh3D 插件导出。
+ */
+export const Mesh3DPlugin: IRuntimePlugin = {
+    manifest,
+    runtimeModule: new Mesh3DRuntimeModule()
+};
+
+export { Mesh3DRuntimeModule };