feat(fsm): 添加有限状态机模块 (#327)

- 添加 IStateMachine 接口，支持泛型状态和上下文
- 添加 StateMachine 实现
- 支持状态定义 (onEnter/onExit/onUpdate)
- 支持转换定义和条件
- 支持事件监听 (onChange/onEnter/onExit)
- 添加 8 个蓝图节点:
  - GetCurrentState, TransitionTo, CanTransition
  - IsInState, WasInState, GetStateDuration
  - EvaluateTransitions, ResetStateMachine

packages/fsm/tsconfig.json

@@ -0,0 +1,14 @@
+{
+    "extends": "../../tsconfig.base.json",
+    "compilerOptions": {
+        "composite": true,
+        "outDir": "./dist",
+        "rootDir": "./src"
+    },
+    "include": ["src/**/*"],
+    "exclude": ["node_modules", "dist"],
+    "references": [
+        { "path": "../core" },
+        { "path": "../blueprint" }
+    ]
+}