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/Features/Splash/SplashTypography.swift

@@ -0,0 +1,37 @@
+//
+//  SplashTypography.swift
+//  suixinkan
+//
+//  Created by Codex on 2026/6/30.
+//
+
+import SwiftUI
+import UIKit
+
+/// 启动页字体规范，供 `SplashView` 与 `Launch Screen.storyboard` 对齐。
+enum SplashTypography {
+    /// 标题字号（「随心瞰」）
+    static let titlePointSize: CGFloat = 40
+    /// 副标题字号（「商家版」）
+    static let subtitlePointSize: CGFloat = 20
+
+    /// 启动页标题 UIKit 字体：40pt system bold + italic。
+    static var titleUIFont: UIFont {
+        let base = UIFont.systemFont(ofSize: titlePointSize, weight: .bold)
+        guard let descriptor = base.fontDescriptor.withSymbolicTraits([.traitBold, .traitItalic]) else {
+            return base
+        }
+        return UIFont(descriptor: descriptor, size: titlePointSize)
+    }
+
+    /// 启动页副标题 UIKit 字体：20pt system bold。
+    static var subtitleUIFont: UIFont {
+        UIFont.systemFont(ofSize: subtitlePointSize, weight: .bold)
+    }
+
+    /// 启动页标题 SwiftUI 字体。
+    static var titleFont: Font { Font(titleUIFont) }
+
+    /// 启动页副标题 SwiftUI 字体。
+    static var subtitleFont: Font { Font(subtitleUIFont) }
+}