feat: 改造我的页渐变与图标网格

lib/core/theme/app_colors.dart

@@ -84,6 +84,13 @@ abstract final class AppColors {
   /// 「我的」页卡片与描边。
   static const mineCard = Color(0xFF16161A);
   static const mineOutline = Color(0xFF4A4A4A);
+  static const mineGradientTop = Color(0xFF1A0F0A);
+  static const mineGradientMiddle = Color(0xFF0D0908);
+  static const mineGradientBottom = Color(0xFF000000);
+  static const mineGridSurface = Color(0x99101010);
+  static const mineGridDivider = Color(0xFF2A2A2A);
+  static const mineGridIconSurface = Color(0xFF1C1C1E);
+  static const mineGridLabel = Color(0xFFE6E6EB);
 
   /// 次级文字与列表 chevron。
   static const textPrimary = Color(0xFFFFFFFF);

lib/core/theme/app_dimens.dart

@@ -179,11 +179,16 @@ abstract final class AppDimens {
 
   /// 「我的」页中性视觉。
   static const double mineCardRadius = 16;
-  static const double mineRowHeight = 56;
   static const double minePageTitle = 17;
   static const double mineSectionTitle = 15;
   static const double mineAvatar = 56;
   static const double mineUserName = 20;
   static const double mineUid = 13;
-  static const double mineMenuIcon = 22;
+  static const double mineGridHorizontal = 14;
+  static const double mineGridRadius = 12;
+  static const double mineGridCellHeight = 96;
+  static const double mineGridIconSurface = 44;
+  static const double mineGridIcon = 22;
+  static const double mineGridLabel = 12;
+  static const double mineGridDividerWidth = 1;
 }