feat: HUD 绑定灵石/声望显示，完成 D2 资源管理

src/UI/HUD/TopBarHUD.tscn

@@ -31,6 +31,7 @@ text = "灵石"
 label_settings = SubResource("LabelSettings_bn2o5")
 
 [node name="Value_Currency" type="Label" parent="HBoxContainer" unique_id=1150573727]
+unique_name_in_owner = true
 layout_mode = 2
 size_flags_horizontal = 3
 size_flags_vertical = 8
@@ -59,6 +60,7 @@ text = "声望"
 label_settings = SubResource("LabelSettings_bn2o5")
 
 [node name="Value_Reputation" type="Label" parent="HBoxContainer" unique_id=2011931119]
+unique_name_in_owner = true
 layout_mode = 2
 size_flags_horizontal = 3
 size_flags_vertical = 8

src/UI/HUD/top_bar_hud.gd

@@ -6,6 +6,8 @@ extends Control
 signal sign_return_mainmenu
 
 @onready var time_label: Label = %Value_Time
+@onready var currency_label: Label = %Value_Currency
+@onready var reputation_label: Label = %Value_Reputation
 @onready var pause_button: Button = %Button_Pause
 @onready var speed_buttons: Array[Button] = [%Button_Speed1, %Button_Speed5, %Button_Speed20]
 
@@ -14,14 +16,30 @@ func _ready() -> void:
 		var btn := speed_buttons[i]
 		btn.toggle_mode = true
 		btn.button_up.connect(_on_speed_button_up.bind(i))
+	# 时间：每日推进时刷新日期
 	TimeSystem.day_passed.connect(_on_day_passed)
-	_update_speed_ui()
+	# 资源数值：信号仅在变化时触发，初始值需手动设置一次
+	SectManager.spirit_stones_changed.connect(_on_spirit_stones_changed)
+	SectManager.reputation_changed.connect(_on_reputation_changed)
+	currency_label.text = str(SectManager.spirit_stones)
+	reputation_label.text = str(SectManager.reputation)
 	time_label.text = TimeSystem.get_date_text()
+	_update_speed_ui()
 
 ## 每日推进时刷新日期显示。
 func _on_day_passed(_year: int, _month: int, _day: int) -> void:
 	time_label.text = TimeSystem.get_date_text()
 
+## 灵石数量变化时刷新显示。
+## @param new_value: 变化后的灵石总量
+func _on_spirit_stones_changed(new_value: int, _delta: int) -> void:
+	currency_label.text = str(new_value)
+
+## 声望变化时刷新显示。
+## @param new_value: 变化后的声望总量
+func _on_reputation_changed(new_value: int, _delta: int) -> void:
+	reputation_label.text = str(new_value)
+
 ## 点击"返回"按钮。
 func _on_button_return_button_up() -> void:
 	sign_return_mainmenu.emit()