refactor(mining-app): rename 绿积分 to 积分值 across all pages

Replace all occurrences of "绿积分" with "积分值" in:
- trading_page.dart (price display, pool name, input field)
- asset_page.dart (account labels)
- trading_account.dart (entity comment)
- price_info.dart (entity comment)
- market_overview.dart (entity comment)
- DEVELOPMENT_GUIDE.md (documentation)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/mining-app/DEVELOPMENT_GUIDE.md

@@ -8,7 +8,7 @@ Mining App 是面向用户的挖矿移动应用，用户通过此 App 查看算
 **主要功能：**
 - 贡献值展示（个人贡献值、团队贡献值）
 - 积分股挖矿收益实时显示
-- 买卖兑换功能（积分股 ↔ 绿积分）
+- 买卖兑换功能（积分股 ↔ 积分值）
 - K线图与价格显示
 - 资产展示
 - 个人中心

frontend/mining-app/lib/domain/entities/market_overview.dart

@@ -4,7 +4,7 @@ import 'package:equatable/equatable.dart';
 class MarketOverview extends Equatable {
   /// 当前价格
   final String price;
-  /// 绿积分池
+  /// 积分值池
   final String greenPoints;
   /// 黑洞销毁量
   final String blackHoleAmount;

frontend/mining-app/lib/domain/entities/price_info.dart

@@ -4,7 +4,7 @@ import 'package:equatable/equatable.dart';
 class PriceInfo extends Equatable {
   /// 当前价格
   final String price;
-  /// 绿积分池
+  /// 积分值池
   final String greenPoints;
   /// 黑洞销毁量
   final String blackHoleAmount;

frontend/mining-app/lib/domain/entities/trading_account.dart

@@ -6,7 +6,7 @@ class TradingAccount extends Equatable {
   final String accountSequence;
   /// 积分股余额
   final String shareBalance;
-  /// 现金余额(绿积分)
+  /// 现金余额(积分值)
   final String cashBalance;
   /// 可用积分股
   final String availableShares;

frontend/mining-app/lib/presentation/pages/asset/asset_page.dart

@@ -376,12 +376,12 @@ class AssetPage extends ConsumerWidget {
           growthText: asset != null ? '每秒 +${formatDecimal(asset.assetGrowthPerSecond, 8)}' : null,
         ),
         const SizedBox(height: 16),
-        // 绿积分（现金余额）
+        // 积分值（现金余额）
         _buildAssetItem(
           icon: Icons.eco,
           iconColor: _green,
           iconBgColor: _feta,
-          title: '绿积分',
+          title: '积分值',
           amount: asset?.cashBalance,
           isLoading: isLoading,
           valueInCny: asset != null ? '¥${formatAmount(asset.cashBalance)}' : null,
@@ -688,10 +688,10 @@ class AssetPage extends ConsumerWidget {
         _buildAccountItem(
           icon: Icons.account_balance_wallet,
           iconColor: _orange,
-          title: '可用绿积分',
+          title: '可用积分值',
           balance: asset?.availableCash,
           isLoading: isLoading,
-          unit: '绿积分',
+          unit: '积分值',
           status: '可交易',
           statusColor: _green,
           statusBgColor: _feta,
@@ -701,10 +701,10 @@ class AssetPage extends ConsumerWidget {
         _buildAccountItem(
           icon: Icons.lock_outline,
           iconColor: _orange,
-          title: '冻结绿积分',
+          title: '冻结积分值',
           balance: asset?.frozenCash,
           isLoading: isLoading,
-          unit: '绿积分',
+          unit: '积分值',
           status: '挂单中',
           statusColor: const Color(0xFF9CA3AF),
           statusBgColor: Colors.white,

frontend/mining-app/lib/presentation/pages/trading/trading_page.dart

@@ -181,9 +181,9 @@ class _TradingPageState extends ConsumerState<TradingPage> {
                 ),
               ),
               DataText(
-                data: priceInfo != null ? '= ${formatCompact(greenPoints)} 绿积分' : null,
+                data: priceInfo != null ? '= ${formatCompact(greenPoints)} 积分值' : null,
                 isLoading: isLoading,
-                placeholder: '= -- 绿积分',
+                placeholder: '= -- 积分值',
                 style: const TextStyle(fontSize: 12, color: _grayText),
               ),
             ],
@@ -385,7 +385,7 @@ class _TradingPageState extends ConsumerState<TradingPage> {
           Row(
             children: [
               _buildMarketDataItem(
-                '绿积分池',
+                '积分值池',
                 market != null ? formatCompact(market.greenPoints) : null,
                 _orange,
                 isLoading,
@@ -506,7 +506,7 @@ class _TradingPageState extends ConsumerState<TradingPage> {
           ),
           const SizedBox(height: 24),
           // 价格输入
-          _buildInputField('价格', _priceController, '请输入价格', '绿积分'),
+          _buildInputField('价格', _priceController, '请输入价格', '积分值'),
           const SizedBox(height: 16),
           // 数量输入
           _buildInputField('数量', _quantityController, '请输入数量', '积分股'),
@@ -643,16 +643,16 @@ class _TradingPageState extends ConsumerState<TradingPage> {
     final total = price * quantity;
 
     if (total == 0) {
-      return '0.00 绿积分';
+      return '0.00 积分值';
     }
 
     if (_selectedTab == 1) {
       // 卖出时扣除10%销毁
       final afterBurn = total * 0.9;
-      return '${formatAmount(afterBurn.toString())} 绿积分';
+      return '${formatAmount(afterBurn.toString())} 积分值';
     }
 
-    return '${formatAmount(total.toString())} 绿积分';
+    return '${formatAmount(total.toString())} 积分值';
   }
 
   Widget _buildMyOrdersCard(AsyncValue<OrdersPageModel?> ordersAsync) {