perf: harden runtime for weaker hardware

world/ui/player_interaction_hud.gd

@@ -2,6 +2,7 @@ class_name PlayerInteractionHud
 extends Control
 
 const FEEDBACK_SECONDS := 2.0
+const PROBE_INTERVAL_SECONDS := 0.1
 const ENTER_OFFSET := 7.0
 const ACCENT_READY := Color(0.9, 0.63, 0.28, 0.95)
 const ACCENT_SUCCESS := Color(0.55, 0.78, 0.38, 0.95)
@@ -20,6 +21,7 @@ var current_context_key := ""
 var feedback_version := 0
 var feedback_active := false
 var feedback_succeeded := false
+var _probe_elapsed := 0.0
 
 
 func _ready() -> void:
@@ -34,12 +36,19 @@ func _ready() -> void:
 	call_deferred("refresh_prompt", true)
 
 
-func _process(_delta: float) -> void:
-	if not feedback_active:
-		refresh_prompt()
+func _process(delta: float) -> void:
+	if feedback_active:
+		return
+	_probe_elapsed += delta
+	if _probe_elapsed < PROBE_INTERVAL_SECONDS:
+		return
+	_probe_elapsed = fmod(_probe_elapsed, PROBE_INTERVAL_SECONDS)
+	refresh_prompt()
 
 
 func refresh_prompt(force: bool = false) -> void:
+	if force:
+		_probe_elapsed = 0.0
 	if player == null or not player.has_method("get_interaction_context"):
 		_hide_prompt()
 		return