refactor(UXAssist): safe GameEvent wrapper and XML docs

UXAssist/Common/GameEvent.cs

@@ -0,0 +1,27 @@
+using System;
+using BepInEx.Logging;
+
+namespace UXAssist.Common;
+
+/// <summary>
+/// Provides safe invocation helpers for game events.
+/// </summary>
+public static class GameEvent
+{
+    /// <summary>
+    /// Invokes each handler in the action's invocation list individually,
+    /// logging a warning if any handler throws an exception.
+    /// </summary>
+    /// <param name="action">The action to invoke.</param>
+    /// <param name="logger">The logger to use for warnings.</param>
+    /// <param name="name">The name of the event for diagnostic messages.</param>
+    public static void InvokeSafe(this Action action, ManualLogSource logger, string name)
+    {
+        if (action == null) return;
+        foreach (var d in action.GetInvocationList())
+        {
+            try { d.DynamicInvoke(); }
+            catch (Exception ex) { logger?.LogWarning($"GameEvent '{name}' handler failed: {ex}"); }
+        }
+    }
+}