feat(UI): 添加初始增益选择面板功能

实现初始增益选择面板的创建和显示逻辑，包括：
- 新增SelectInitialFeed面板场景和脚本
- 修改CompilingTip面板结束后跳转到选择面板
- 在ComponentManager中添加面板管理功能
- 优化UIState的面板加载和切换逻辑

scripts/Statemachine/UIState.gd

@@ -23,6 +23,11 @@ func _ready():
 	items = $%items
 	fields = $%fields
 	fieldsAnimator = $%fieldsAnimator
+	await get_tree().process_frame
+	for panel in ComponentManager.panels:
+		panel = ComponentManager.getPanel(panel).instantiate() as FullscreenPanelBase
+		panel.hide()
+		panels.add_child(panel)
 	setPanel("Starter")
 func _process(_delta):
 	bossbar.visible = !!bossbar.entity
@@ -72,6 +77,8 @@ static func setPanel(targetName: String = "", args: Array = []):
 				panel.showPanel(args)
 			else:
 				panel.hidePanel()
+	if !currentPanel:
+		print("没有叫%s的面板" % targetName)
 static func closeCurrentPanel():
 	setPanel()
 static func showTip(text: String, messageType: TipBox.MessageType = TipBox.MessageType.INFO):