Refactor event channels and update layer specifications

- Removed StatusEffectEventChannelSO and its associated meta file.
- Updated CreateEventChannelAssets to handle new shield-related events.
- Added CharmModule for managing charm assets in the DataHub.
- Introduced CharmEventChannelSO for charm equipped/unequipped events.
- Changed layer references from "Ground" to "Platform" in various scripts.
- Updated documentation to reflect changes in layer specifications.
- Created new event assets for ShieldBroken, ShieldRestored, StatusEffectApplied, and StatusEffectExpired.

Assets/_Game/Scripts/Equipment/CharmEventChannelSO.cs

@@ -0,0 +1,11 @@
+using UnityEngine;
+using BaseGames.Core.Events;
+
+namespace BaseGames.Equipment
+{
+    /// <summary>
+    /// 护符事件频道（EVT_CharmEquipped / EVT_CharmUnequipped）。
+    /// </summary>
+    [CreateAssetMenu(menuName = "BaseGames/Events/CharmEvent")]
+    public class CharmEventChannelSO : BaseEventChannelSO<CharmSO> { }
+}

Assets/_Game/Scripts/Equipment/CharmEventChannelSO.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 2700003909ad60e4ba4b04d06f97805e
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/_Game/Scripts/Equipment/CharmSO.cs

@@ -1,6 +1,5 @@
 using System.Collections.Generic;
 using UnityEngine;
-using BaseGames.Core.Events;
 
 namespace BaseGames.Equipment
 {
@@ -33,10 +32,4 @@ namespace BaseGames.Equipment
         public bool     isUnique;
         public string   unlockHint;
     }
-
-    /// <summary>
-    /// 护符事件频道（EVT_CharmEquipped / EVT_CharmUnequipped）。
-    /// </summary>
-    [CreateAssetMenu(menuName = "BaseGames/Events/CharmEvent")]
-    public class CharmEventChannelSO : BaseEventChannelSO<CharmSO> { }
 }