Add core game retry flow and question stats

scripts/ui/block_setup.gd

@@ -13,6 +13,8 @@ var start_button: Button
 func _ready() -> void:
 	set_anchors_preset(Control.PRESET_FULL_RECT)
 	add_theme_constant_override("separation", 16)
+	if not QuestionBankService.questions_changed.is_connected(_refresh_setup):
+		QuestionBankService.questions_changed.connect(_refresh_setup)
 
 	var title := Label.new()
 	title.text = "Block Setup"
@@ -66,12 +68,23 @@ func _ready() -> void:
 
 func on_show(payload: Variant = null) -> void:
 	selected_system = str(payload) if payload != null else "All Systems"
+	_refresh_setup()
+
+
+func _refresh_setup() -> void:
+	if system_label == null:
+		return
 	system_label.text = "Zone: %s" % selected_system
 	var available := QuestionBankService.get_questions_for_system(selected_system).size()
 	size_spin.max_value = max(1, available)
 	size_spin.value = min(size_spin.value, available)
-	start_button.disabled = available == 0
-	status_label.text = QuestionBankService.last_error if available == 0 else ""
+	start_button.disabled = available == 0 or QuestionBankService.is_loading
+	if QuestionBankService.is_loading:
+		status_label.text = "Question API unavailable. Retrying in %d seconds..." % QuestionBankService.next_retry_seconds if QuestionBankService.load_state == "retrying" else "Loading question bank..."
+	elif available == 0:
+		status_label.text = QuestionBankService.last_error if QuestionBankService.last_error != "" else "No questions are available for this zone yet."
+	else:
+		status_label.text = "%d questions available." % available
 
 
 func _start_block() -> void: