feat(character): 实现角色状态机与输入路由系统

新增角色状态机框架，包含空闲、移动、跳跃、攻击等状态
添加输入路由组件，统一处理键盘和手柄输入
引入动作库管理角色动作定义，支持PVF脚本配置
重构角色对象，整合运动器、状态机和输入处理
修复Actor子节点排序时的迭代安全问题

Game/include/character/CharacterObject.h

@@ -1,9 +1,14 @@
 #pragma once
 
+#include "character/CharacterActionLibrary.h"
 #include "character/CharacterAnimation.h"
 #include "character/CharacterDataLoader.h"
 #include "character/CharacterEquipmentManager.h"
+#include "character/CharacterInputRouter.h"
+#include "character/CharacterStateMachine.h"
 #include <frostbite2D/2d/actor.h>
+#include <frostbite2D/event/joystick_event.h>
+#include <frostbite2D/event/key_event.h>
 #include <optional>
 #include <string>
 
@@ -19,11 +24,32 @@ public:
   void SetAction(const std::string& actionName);
   void SetDirection(int direction);
   void SetCharacterPosition(const Vec2& pos);
+  void SetWorldPosition(const CharacterWorldPosition& pos);
+  void PushCommand(const CharacterCommand& command);
+  void ApplyHit(const HitContext& hit);
+
+  void OnUpdate(float deltaTime) override;
+  bool OnKeyDown(const KeyEvent& event) override;
+  bool OnKeyUp(const KeyEvent& event) override;
+  bool OnJoystickAxis(const JoystickEvent& event) override;
+  bool OnJoystickButtonDown(const JoystickEvent& event) override;
+  bool OnJoystickButtonUp(const JoystickEvent& event) override;
 
   int GetJobId() const { return jobId_; }
   int GetGrowType() const { return growType_; }
   int GetDirection() const { return direction_; }
   const std::string& GetCurrentAction() const { return currentAction_; }
+  CharacterStateId GetState() const { return stateMachine_.GetState(); }
+  const CharacterIntent& GetCurrentIntent() const { return currentIntent_; }
+  const CharacterWorldPosition& GetWorldPosition() const { return motor_.position; }
+  const CharacterMotor& GetMotor() const { return motor_; }
+  CharacterMotor& GetMotorMutable() { return motor_; }
+  float GetLastDeltaTime() const { return lastDeltaTime_; }
+  const CharacterActionDefinition* FindAction(const std::string& actionId) const;
+  std::string ResolveAnimationTag(const std::string& preferred,
+                                  const std::string& fallback) const;
+  void PlayAnimationTag(const std::string& actionTag);
+  void SetFacing(int direction);
 
   const character::CharacterConfig* GetConfig() const {
     return config_ ? &config_.value() : nullptr;
@@ -37,7 +63,15 @@ private:
   std::string currentAction_;
   std::optional<character::CharacterConfig> config_;
   CharacterEquipmentManager equipmentManager_;
+  CharacterActionLibrary actionLibrary_;
+  CharacterInputRouter inputRouter_;
+  CharacterCommandBuffer commandBuffer_;
+  CharacterIntent currentIntent_;
+  CharacterStateMachine stateMachine_;
+  CharacterMotor motor_;
+  CharacterStatus status_;
   RefPtr<CharacterAnimation> animationManager_ = nullptr;
+  float lastDeltaTime_ = 0.0f;
 };
 
 } // namespace frostbite2D