Update project configuration and plugin version. Added autoload for game helper and enabled AI plugin in project settings. Updated plugin version to 3.1.5 for compatibility improvements.

project.godot

@@ -14,6 +14,10 @@ config/name="g-world"
 config/features=PackedStringArray("4.7", "Forward Plus")
 config/icon="res://icon.svg"
 
+[autoload]
+
+_mcp_game_helper="*res://addons/godot_ai/runtime/game_helper.gd"
+
 [display]
 
 window/stretch/mode="canvas_items"
@@ -23,6 +27,10 @@ window/stretch/aspect="expand"
 
 project/assembly_name="g-world"
 
+[editor_plugins]
+
+enabled=PackedStringArray("res://addons/godot_ai/plugin.cfg")
+
 [physics]
 
 3d/physics_engine="Jolt Physics"