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/framework/pathfinding/src/index.ts

@@ -0,0 +1,103 @@
+/**
+ * @esengine/pathfinding
+ *
+ * @zh 寻路系统
+ * @en Pathfinding System
+ *
+ * @zh 提供 A* 寻路、网格地图、导航网格和路径平滑
+ * @en Provides A* pathfinding, grid map, NavMesh and path smoothing
+ */
+
+// =============================================================================
+// Core | 核心
+// =============================================================================
+
+export type {
+    IPoint,
+    IPathNode,
+    IPathResult,
+    IPathfindingMap,
+    IPathfinder,
+    IPathSmoother,
+    IPathfindingOptions,
+    HeuristicFunction,
+    LineOfSightCheck
+} from './core';
+
+export {
+    createPoint,
+    EMPTY_PATH_RESULT,
+    DEFAULT_PATHFINDING_OPTIONS,
+    manhattanDistance,
+    euclideanDistance,
+    chebyshevDistance,
+    octileDistance,
+    BinaryHeap,
+    AStarPathfinder,
+    createAStarPathfinder
+} from './core';
+
+// =============================================================================
+// Grid | 网格地图
+// =============================================================================
+
+export type { IGridMapOptions } from './grid';
+
+export {
+    GridNode,
+    GridMap,
+    createGridMap,
+    DIRECTIONS_4,
+    DIRECTIONS_8,
+    DEFAULT_GRID_OPTIONS
+} from './grid';
+
+// =============================================================================
+// NavMesh | 导航网格
+// =============================================================================
+
+export type { INavPolygon, IPortal } from './navmesh';
+
+export { NavMesh, createNavMesh } from './navmesh';
+
+// =============================================================================
+// Smoothing | 路径平滑
+// =============================================================================
+
+export {
+    bresenhamLineOfSight,
+    raycastLineOfSight,
+    LineOfSightSmoother,
+    CatmullRomSmoother,
+    CombinedSmoother,
+    createLineOfSightSmoother,
+    createCatmullRomSmoother,
+    createCombinedSmoother
+} from './smoothing';
+
+// =============================================================================
+// Blueprint Nodes | 蓝图节点
+// =============================================================================
+
+export {
+    // Templates
+    FindPathTemplate,
+    FindPathSmoothTemplate,
+    IsWalkableTemplate,
+    GetPathLengthTemplate,
+    GetPathDistanceTemplate,
+    GetPathPointTemplate,
+    MoveAlongPathTemplate,
+    HasLineOfSightTemplate,
+    // Executors
+    FindPathExecutor,
+    FindPathSmoothExecutor,
+    IsWalkableExecutor,
+    GetPathLengthExecutor,
+    GetPathDistanceExecutor,
+    GetPathPointExecutor,
+    MoveAlongPathExecutor,
+    HasLineOfSightExecutor,
+    // Collection
+    PathfindingNodeDefinitions
+} from './nodes';