feat(mine): 统一我的页深色视觉风格

lib/core/theme/app_colors.dart

@@ -70,6 +70,7 @@ abstract final class AppColors {
   static const contentBorder = Color(0x1AFFFFFF);
 
   /// 次级文字与列表 chevron。
+  static const textPrimary = Color(0xFFFFFFFF);
   static const textSecondary = Color(0xFF8E8E93);
 
   /// 原生开屏与冷启动过渡底色。

lib/core/theme/app_dimens.dart

@@ -87,4 +87,10 @@ abstract final class AppDimens {
   static const double homeSectionIndicator = 2;
   static const double homeIconSlot = 44;
   static const double homeHeaderIcon = 22;
+
+  /// 「我的」页中性视觉。
+  static const double mineCardRadius = 16;
+  static const double mineRowHeight = 52;
+  static const double minePageTitle = 21;
+  static const double mineSectionTitle = 15;
 }