Refactor interaction prompt system to use world space prompts

- Removed the InteractPromptWidget from HUD and its references in HUDController.
- Introduced IInteractPromptView interface for world space interaction prompts.
- Implemented WorldInteractPrompt class to manage display of interaction prompts in world space.
- Updated InteractableDetector to handle showing/hiding of world space prompts based on player proximity to interactable objects.
- Created a new prefab for UI_WorldInteractPrompt to facilitate the new interaction prompt system.

Assets/_Game/Scripts/UI/HUD/HUDController.cs

@@ -30,9 +30,7 @@ namespace BaseGames.UI.HUD
         [Header("Form")]
         [SerializeField] private Image[] _formIcons;
 
-        [Header("Interact Prompt")]
-        [Tooltip("独立 Widget 组件负责渲染图标+文本，HUDController 仅保留引用供编辑器配置检查")]
-        [SerializeField] private InteractPromptWidget _interactPromptWidget;
+        // 交互提示已改为「每个交互物自带的世界空间提示」（WorldInteractPrompt），不再由 HUD 承载。
 
         [Header("Event Channels - Subscribe")]
         [SerializeField] private IntEventChannelSO    _onHPChanged;

Assets/_Game/Scripts/UI/HUD/InteractPromptWidget.cs

@@ -1,119 +0,0 @@
-using TMPro;
-using UnityEngine;
-using UnityEngine.UI;
-using BaseGames.Core;
-using BaseGames.Core.Events;
-
-namespace BaseGames.UI.HUD
-{
-    /// <summary>
-    /// 交互提示 Widget。
-    ///
-    /// 职责：
-    ///   • 订阅 InteractPromptEventChannelSO 显示/隐藏提示
-    ///   • 显示按键图标（Image）+ 动作文本（TMP_Text）
-    ///   • 监听 IInputIconService.OnIconSetChanged，在设备切换或改键后自动刷新图标
-    ///
-    /// 布置方式：放在 HUD Canvas 下，引用对应的事件频道 SO 资产。
-    /// 不依赖 HUDController，可独立使用。
-    /// </summary>
-    public sealed class InteractPromptWidget : MonoBehaviour
-    {
-        [Header("UI 引用")]
-        [SerializeField] private Image    _keyIcon;
-        [SerializeField] private TMP_Text _labelText;
-        [Tooltip("整个提示根节点，控制显示/隐藏")]
-        [SerializeField] private GameObject _root;
-
-        [Header("Event Channels")]
-        [SerializeField] private InteractPromptEventChannelSO _onShowPrompt;
-        [SerializeField] private VoidEventChannelSO           _onHidePrompt;
-
-        // ── 运行时状态 ────────────────────────────────────────────────────────
-        private IInputIconService _iconService;
-        private string            _currentActionName;
-        private readonly CompositeDisposable _subs = new();
-
-        // ── Lifecycle ─────────────────────────────────────────────────────────
-
-        private void OnEnable()
-        {
-            // ServiceLocator 可能在此组件 OnEnable 时尚未注册（执行顺序问题），
-            // 延迟到 ShowPrompt 首次调用时再获取，确保服务可用
-            _onShowPrompt?.Subscribe(ShowPrompt).AddTo(_subs);
-            _onHidePrompt?.Subscribe(HidePrompt).AddTo(_subs);
-
-            HidePrompt();
-        }
-
-        private void OnDisable()
-        {
-            _subs.Clear();
-            UnsubscribeFromIconService();
-        }
-
-        // ── Handlers ──────────────────────────────────────────────────────────
-
-        private void ShowPrompt(InteractPromptEvent evt)
-        {
-            _currentActionName = evt.ActionName;
-
-            // 延迟绑定：首次显示时获取服务（确保 ServiceLocator 已初始化）
-            if (_iconService == null)
-            {
-                _iconService = ServiceLocator.GetOrDefault<IInputIconService>();
-                if (_iconService != null)
-                    _iconService.OnIconSetChanged += RefreshIcon;
-            }
-
-            if (_labelText != null)
-                _labelText.text = evt.LabelText;
-
-            RefreshIcon();
-
-            if (_root != null)
-                _root.SetActive(true);
-            else
-                gameObject.SetActive(true);
-        }
-
-        private void HidePrompt()
-        {
-            _currentActionName = null;
-
-            if (_root != null)
-                _root.SetActive(false);
-            else
-                gameObject.SetActive(false);
-        }
-
-        // ── Icon Refresh ──────────────────────────────────────────────────────
-
-        /// <summary>设备切换或改键后刷新图标。由 IInputIconService.OnIconSetChanged 调用。</summary>
-        private void RefreshIcon()
-        {
-            if (_keyIcon == null || string.IsNullOrEmpty(_currentActionName)) return;
-
-            var sprite = _iconService?.GetActionIcon(_currentActionName);
-            if (sprite != null)
-            {
-                _keyIcon.sprite  = sprite;
-                _keyIcon.enabled = true;
-            }
-            else
-            {
-                // 找不到图标时隐藏图标格，避免显示错误占位图
-                _keyIcon.enabled = false;
-            }
-        }
-
-        private void UnsubscribeFromIconService()
-        {
-            if (_iconService != null)
-            {
-                _iconService.OnIconSetChanged -= RefreshIcon;
-                _iconService = null;
-            }
-        }
-    }
-}

Assets/_Game/Scripts/UI/HUD/InteractPromptWidget.cs.meta

@@ -1,11 +0,0 @@
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