Remove plugin binaries from tracking, add Plugins/*/Binaries/ to gitignore

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Unreal/PS_AI_Agent/Plugins/PS_AI_Behavior/Binaries/Win64/UnrealEditor.modules

@@ -1,8 +0,0 @@
-{
-	"BuildId": "37670630",
-	"Modules": 
-	{
-		"PS_AI_Behavior": "UnrealEditor-PS_AI_Behavior.dll",
-		"PS_AI_BehaviorEditor": "UnrealEditor-PS_AI_BehaviorEditor.dll"
-	}
-}

Unreal/PS_AI_Agent/Plugins/PS_AI_ConvAgent/Binaries/Win64/UnrealEditor.modules

@@ -1,8 +0,0 @@
-{
-	"BuildId": "37670630",
-	"Modules": 
-	{
-		"PS_AI_ConvAgent": "UnrealEditor-PS_AI_ConvAgent.dll",
-		"PS_AI_ConvAgentEditor": "UnrealEditor-PS_AI_ConvAgentEditor.dll"
-	}
-}