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>

suixinkanUITests/Support/SuixinkanUIApplication.swift

@@ -43,21 +43,26 @@ final class SuixinkanApp {
             hasLaunched = true
         }
         dismissSystemAlertsIfNeeded()
-        waitForSplashToDisappearIfNeeded()
+        waitForInitialScreen()
         if waitForLoading {
             waitForGlobalLoadingToDisappear()
         }
         return self
     }
 
-    /// 等待启动页消失后再继续后续断言。
-    func waitForSplashToDisappearIfNeeded(timeout: TimeInterval = 5) {
-        let splash = application.otherElements["splash.root"]
-        guard splash.waitForExistence(timeout: 2) else { return }
+    /// 等待冷启动后进入登录页或主 Tab。
+    func waitForInitialScreen(timeout: TimeInterval = 45) {
+        if application.staticTexts["login.title"].waitForExistence(timeout: 2) {
+            return
+        }
 
-        let predicate = NSPredicate(format: "exists == false")
-        let expectation = XCTNSPredicateExpectation(predicate: predicate, object: splash)
-        _ = XCTWaiter.wait(for: [expectation], timeout: timeout)
+        let deadline = Date().addingTimeInterval(timeout)
+        while Date() < deadline {
+            if isOnMainTabs {
+                return
+            }
+            RunLoop.current.run(until: Date().addingTimeInterval(0.2))
+        }
     }
 
     /// 等待全局 Loading 层消失。
@@ -91,19 +96,4 @@ final class SuixinkanApp {
     var isOnMainTabs: Bool {
         TabBarNavigator.isVisible(in: self)
     }
-
-    /// 等待冷启动后进入登录页或主 Tab。
-    func waitForInitialScreen(timeout: TimeInterval = 45) {
-        if application.staticTexts["login.title"].waitForExistence(timeout: 2) {
-            return
-        }
-
-        let deadline = Date().addingTimeInterval(timeout)
-        while Date() < deadline {
-            if isOnMainTabs {
-                return
-            }
-            RunLoop.current.run(until: Date().addingTimeInterval(0.2))
-        }
-    }
 }