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/physics/rapier2d/src/init.ts

@@ -0,0 +1,60 @@
+/**
+ * RAPIER initialization module with dynamic WASM loading support.
+ * RAPIER 初始化模块，支持动态 WASM 加载。
+ */
+
+import wasmInit from "../pkg/rapier_wasm2d";
+
+/**
+ * Input types for WASM initialization.
+ * WASM 初始化的输入类型。
+ */
+export type InitInput =
+    | RequestInfo         // URL string or Request object
+    | URL                 // URL object
+    | Response            // Fetch Response object
+    | BufferSource        // ArrayBuffer or TypedArray
+    | WebAssembly.Module; // Pre-compiled module
+
+let initialized = false;
+
+/**
+ * Initializes RAPIER.
+ * Has to be called and awaited before using any library methods.
+ *
+ * 初始化 RAPIER。
+ * 必须在使用任何库方法之前调用并等待。
+ *
+ * @param input - WASM source (required). Can be URL, Response, ArrayBuffer, etc.
+ *                WASM 源（必需）。可以是 URL、Response、ArrayBuffer 等。
+ *
+ * @example
+ * // Load from URL | 从 URL 加载
+ * await RAPIER.init('wasm/rapier_wasm2d_bg.wasm');
+ *
+ * @example
+ * // Load from fetch response | 从 fetch 响应加载
+ * const response = await fetch('wasm/rapier_wasm2d_bg.wasm');
+ * await RAPIER.init(response);
+ *
+ * @example
+ * // Load from ArrayBuffer | 从 ArrayBuffer 加载
+ * const buffer = await fetch('wasm/rapier_wasm2d_bg.wasm').then(r => r.arrayBuffer());
+ * await RAPIER.init(buffer);
+ */
+export async function init(input?: InitInput): Promise<void> {
+    if (initialized) {
+        return;
+    }
+
+    await wasmInit(input);
+    initialized = true;
+}
+
+/**
+ * Check if RAPIER is already initialized.
+ * 检查 RAPIER 是否已初始化。
+ */
+export function isInitialized(): boolean {
+    return initialized;
+}