Implement playable Mac client and rendering validation

project/combat_fx_test.gd

@@ -63,6 +63,8 @@ class FakeAnim extends Node:
 class FakeView extends Node3D:
 	var states := []
 	var anim := FakeAnim.new()
+	func _init() -> void:
+		add_child(anim)
 	func set_anim_state(s): states.append(s)
 
 class FakeHud extends Node:
@@ -300,6 +302,7 @@ func _run() -> void:
 
 	# 端到端：proto 桩 + parts[WEAPON] -> _refresh_motion_mode() -> combo_motion_mode 变，且清连击
 	var fp := FakeProto.new()
+	get_root().add_child(fp)
 	fp.items[19] = {"type": np.ITEM_TYPE_WEAPON, "sub_type": np.WEAPON_SUB_DAGGER}
 	np.proto = fp
 	np._main_vid = 1000