fix(plugin): remove inaccurate comment about closure in typewriter pattern

The code was already fixed to use static lambda with state parameter,
so the comment suggesting it uses a closure was incorrect.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Signed-off-by: JasonXuDeveloper - 傑 <jason@xgamedev.net>

Author: JasonXuDeveloper

.claude-plugin/skills/game-patterns/SKILL.md

@@ -393,7 +393,7 @@ public sealed class TooltipTrigger : IDisposable
 }
 ```
 
-### Typewriter Effect (with StringBuilder Pool)
+### Typewriter Effect (Zero-GC)
 ```csharp
 public sealed class TypewriterState
 {
@@ -411,8 +411,6 @@ public sealed class TypewriterState
     }
 }
 
-// Note: This pattern uses a closure for simplicity. For high-frequency usage,
-// consider wrapping StringBuilder in the state class to achieve full zero-GC.
 public static async UniTask TypeText(string content, float charDelay, Action<string> onUpdate)
 {
     var state = JObjectPool.Shared<TypewriterState>().Rent();