perf: harden runtime for weaker hardware

tests/jajce_combat_presentation_test.gd

@@ -47,19 +47,33 @@ func _run() -> void:
 	)
 
 	var wolf_visual: Node3D = combat_view.hostiles[wolf.get_combatant_id()]
+	var sword_definition := SimulationItems.get_weapon(SimulationIds.ITEM_SWORD)
+	_check(
+		is_equal_approx(controller.attack_range, sword_definition.reach),
+		"Player targeting and simulation authority should share the sword definition reach"
+	)
 	player.global_position = wolf_visual.global_position + Vector3(-2.0, 0.0, 0.0)
 	player.look_at(wolf_visual.global_position, Vector3.UP)
 	player.rotation.x = 0.0
+	simulation_manager.update_player_combatant(player.global_position)
 	var wolf_health: float = wolf.get_health()
 	controller.call("_perform_attack")
 	_check(
 		wolf.get_health() < wolf_health,
 		"A player sword strike should damage the hostile wolf through the simulation"
 	)
+	var hit_tween: Tween = wolf_visual.get("_flash_tween") as Tween
+	wolf.set_position(wolf.get_position() + Vector3(0.1, 0.0, 0.0))
+	_check(
+		wolf_visual.get("_flash_tween") == hit_tween,
+		"An injured hostile should not replay its hit flash for a position-only state update"
+	)
 	var struck := 0
 	for _attempt in 6:
 		if not wolf.is_alive():
 			break
+		controller.call("_advance_timers", sword_definition.attack_cooldown)
+		simulation_manager.advance_player_combat_time(sword_definition.attack_cooldown)
 		controller.call("_perform_attack")
 		struck += 1
 		await process_frame