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/rust/engine/src/resource/handle.rs

@@ -0,0 +1,55 @@
+//! Resource handle types.
+//! 资源句柄类型。
+
+/// Type alias for resource handle IDs.
+/// 资源句柄ID的类型别名。
+pub type HandleId = u32;
+
+/// Generic resource handle.
+/// 通用资源句柄。
+///
+/// A lightweight identifier for referencing loaded resources.
+/// 用于引用已加载资源的轻量级标识符。
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub struct Handle<T> {
+    /// Unique identifier.
+    /// 唯一标识符。
+    id: HandleId,
+
+    /// Phantom data for type safety.
+    /// 用于类型安全的幻象数据。
+    _marker: std::marker::PhantomData<T>,
+}
+
+impl<T> Handle<T> {
+    /// Create a new handle with the given ID.
+    /// 使用给定ID创建新句柄。
+    #[inline]
+    pub const fn new(id: HandleId) -> Self {
+        Self {
+            id,
+            _marker: std::marker::PhantomData,
+        }
+    }
+
+    /// Get the handle ID.
+    /// 获取句柄ID。
+    #[inline]
+    pub const fn id(&self) -> HandleId {
+        self.id
+    }
+}
+
+impl<T> From<HandleId> for Handle<T> {
+    #[inline]
+    fn from(id: HandleId) -> Self {
+        Self::new(id)
+    }
+}
+
+impl<T> From<Handle<T>> for HandleId {
+    #[inline]
+    fn from(handle: Handle<T>) -> Self {
+        handle.id
+    }
+}

packages/rust/engine/src/resource/mod.rs

@@ -0,0 +1,7 @@
+//! Resource management system.
+//! 资源管理系统。
+
+mod handle;
+
+pub use handle::{Handle, HandleId};
+pub use crate::renderer::texture::{Texture, TextureManager};