优化冷启动流程：Launch Screen 对齐 Splash，仅阻塞 rolePermissions。

移除 SplashCoordinator，bootstrap 期间用 SplashView 覆盖避免空白闪屏，其余账号数据改为后台补充刷新。

Co-authored-by: Cursor <cursoragent@cursor.com>

suixinkan/App/RootView.swift

@@ -48,7 +48,7 @@ struct RootView: View {
     @State private var cooperationOrderAPI: CooperationOrderAPI
     @State private var authSessionCoordinator: AuthSessionCoordinator
     @State private var sessionBootstrapper: SessionBootstrapper
-    @StateObject private var splashCoordinator = SplashCoordinator()
+    @State private var isColdStartBootstrapPending = true
     @State private var appConfigAPI: AppConfigAPI
 
     /// 初始化网络客户端和业务 API，确保它们共享同一个 token provider。
@@ -106,7 +106,7 @@ struct RootView: View {
         ZStack {
             rootContent
 
-            if !splashCoordinator.isFinished {
+            if isColdStartBootstrapPending {
                 SplashView()
                     .transition(.opacity)
                     .zIndex(1)
@@ -155,15 +155,16 @@ struct RootView: View {
             .task {
                 apiClient.bindAuthTokenProvider { appSession.token }
                 PushNotificationManager.shared.configure(api: pushAPI, session: appSession, router: appRouter)
-                await splashCoordinator.start {
-                    await sessionBootstrapper.restore(
-                        appSession: appSession,
-                        accountContext: accountContext,
-                        permissionContext: permissionContext,
-                        profileAPI: profileAPI,
-                        accountContextAPI: accountContextAPI,
-                        toastCenter: toastCenter
-                    )
+                await sessionBootstrapper.restore(
+                    appSession: appSession,
+                    accountContext: accountContext,
+                    permissionContext: permissionContext,
+                    profileAPI: profileAPI,
+                    accountContextAPI: accountContextAPI,
+                    toastCenter: toastCenter
+                )
+                withAnimation {
+                    isColdStartBootstrapPending = false
                 }
                 if appSession.isLoggedIn, !AppUITestLaunchState.isRunningUITests {
                     PushNotificationManager.shared.requestAuthorizationAndRegister()
@@ -227,7 +228,7 @@ struct RootView: View {
         case .loggedOut:
             LoginView()
         case .restoring:
-            Color(.systemBackground)
+            Color.clear
                 .frame(maxWidth: .infinity, maxHeight: .infinity)
         case .loggedIn:
             MainTabsView()