feat(spatial): 空间查询和索引系统 (#324)

* feat(spatial): 添加空间查询包

- ISpatialQuery: 空间查询接口
  - findInRadius, findInRect, findNearest, findKNearest
  - raycast, raycastFirst
  - IBounds, IRaycastHit, SpatialFilter 类型

- ISpatialIndex: 空间索引接口
  - insert, remove, update, clear, getAll

- GridSpatialIndex: 网格空间索引实现
  - 基于均匀网格的空间划分
  - 支持所有 ISpatialQuery 操作

- 工具函数
  - createBounds, isPointInBounds, boundsIntersect
  - distanceSquared, distance

* feat(spatial): 添加空间查询蓝图节点

- 添加 FindInRadius/FindInRect/FindNearest/FindKNearest 节点
- 添加 Raycast/RaycastFirst 射线检测节点
- 每个节点包含模板和执行器
- 使用 menuPath: ['Spatial', ...] 组织节点菜单

pnpm-lock.yaml

@@ -1719,6 +1719,37 @@ importers:
         specifier: ^5.0.8
         version: 5.0.8(@types/react@18.3.27)(react@18.3.1)(use-sync-external-store@1.6.0(react@18.3.1))
 
+  packages/spatial:
+    dependencies:
+      tslib:
+        specifier: ^2.8.1
+        version: 2.8.1
+    devDependencies:
+      '@esengine/blueprint':
+        specifier: workspace:*
+        version: link:../blueprint
+      '@esengine/build-config':
+        specifier: workspace:*
+        version: link:../build-config
+      '@esengine/ecs-framework':
+        specifier: workspace:*
+        version: link:../core
+      '@esengine/ecs-framework-math':
+        specifier: workspace:*
+        version: link:../math
+      '@types/node':
+        specifier: ^20.19.17
+        version: 20.19.25
+      rimraf:
+        specifier: ^5.0.0
+        version: 5.0.10
+      tsup:
+        specifier: ^8.0.0
+        version: 8.5.1(@microsoft/api-extractor@7.55.1(@types/node@20.19.25))(@swc/core@1.15.3)(jiti@2.6.1)(postcss@8.5.6)(tsx@4.21.0)(typescript@5.9.3)(yaml@2.8.1)
+      typescript:
+        specifier: ^5.8.3
+        version: 5.9.3
+
   packages/sprite:
     devDependencies:
       '@esengine/asset-system':