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/math.ts

@@ -0,0 +1,72 @@
+import {RawVector, RawRotation} from "./raw";
+
+export interface Vector {
+    x: number;
+    y: number;
+}
+
+/**
+ * A 2D vector.
+ */
+export class Vector2 implements Vector {
+    x: number;
+    y: number;
+
+    constructor(x: number, y: number) {
+        this.x = x;
+        this.y = y;
+    }
+}
+
+export class VectorOps {
+    public static new(x: number, y: number): Vector {
+        return new Vector2(x, y);
+    }
+
+    public static zeros(): Vector {
+        return VectorOps.new(0.0, 0.0);
+    }
+
+    // FIXME: type ram: RawVector?
+    public static fromRaw(raw: RawVector): Vector | null {
+        if (!raw) return null;
+
+        let res = VectorOps.new(raw.x, raw.y);
+        raw.free();
+        return res;
+    }
+
+    public static intoRaw(v: Vector): RawVector {
+        return new RawVector(v.x, v.y);
+    }
+
+    public static copy(out: Vector, input: Vector) {
+        out.x = input.x;
+        out.y = input.y;
+    }
+}
+
+/**
+ * A rotation angle in radians.
+ */
+export type Rotation = number;
+
+export class RotationOps {
+    public static identity(): number {
+        return 0.0;
+    }
+
+    public static fromRaw(raw: RawRotation): Rotation | null {
+        if (!raw) return null;
+
+        let res = raw.angle;
+        raw.free();
+        return res;
+    }
+
+    public static intoRaw(angle: Rotation): RawRotation {
+        return RawRotation.fromAngle(angle);
+    }
+}
+
+