merge: 合并远程更新，保留UI修复

- 解决 balance_card.dart 冲突：保留撑满宽度的修改
- 解决 home_page.dart 冲突：保留移除日历的修改
- 合并远程的新功能和改进

flutter_monisuo/lib/ui/pages/asset/components/balance_card.dart

@@ -2,29 +2,22 @@ import 'package:flutter/material.dart';
 import '../../../../core/theme/app_theme.dart';
 import '../../../../core/theme/app_theme_extension.dart';
 import '../../../../core/theme/app_spacing.dart';
-import '../../../../providers/asset_provider.dart';
 import '../../../components/glass_panel.dart';
 
-/// 余额卡片 — .pen node 59637
-/// cornerRadius: lg, fill: $surface-card, padding: 20, stroke: $border-default 1px, gap: 12
-/// balLabel: "USDT 余额" 12px normal $text-secondary
-/// balAmount: "25,680.50" 28px w700 $text-primary
-/// balSubRow: "≈ $25,680.50 USD" 12px normal $text-muted
+/// 余额卡片 — 显示单个账户的 USDT 余额
 class BalanceCard extends StatelessWidget {
-  final AssetProvider provider;
-  final int activeTab;
+  final String label;
+  final String balance;
 
   const BalanceCard({
     super.key,
-    required this.provider,
-    required this.activeTab,
+    required this.label,
+    required this.balance,
   });
 
   @override
   Widget build(BuildContext context) {
-    final displayBalance = activeTab == 0
-        ? (provider.fundAccount?.balance ?? provider.overview?.fundBalance ?? '0.00')
-        : _calculateTradeTotal();
+    final displayBalance = balance;
 
     return SizedBox(
       width: double.infinity, // 确保卡片撑满宽度
@@ -35,7 +28,7 @@ class BalanceCard extends StatelessWidget {
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
             Text(
-              'USDT 余额',
+              label,
               style: AppTextStyles.bodyMedium(context).copyWith(
                 color: context.colors.onSurfaceVariant,
                 fontWeight: FontWeight.w400,
@@ -60,14 +53,6 @@ class BalanceCard extends StatelessWidget {
     );
   }
 
-  String _calculateTradeTotal() {
-    double total = 0;
-    for (var h in provider.holdings) {
-      total += double.tryParse(h.currentValue?.toString() ?? '0') ?? 0;
-    }
-    return total.toStringAsFixed(2);
-  }
-
   String _formatBalance(String balance) {
     final d = double.tryParse(balance) ?? 0;
     return d.toStringAsFixed(2).replaceAllMapped(