refactor(ui): 将"个人"替换为"本人"

- team_tree_widget.dart: 节点详情弹窗中"个人参与"改为"本人参与"
- team_page.dart: 统计卡片中"个人参与"改为"本人参与"
- contribution_page.dart: 贡献值统计中"个人贡献值"改为"本人贡献值"，"个人参与产生的贡献值"改为"本人参与产生的贡献值"
- contribution_records_page.dart: 筛选标签"个人"改为"本人"，来源类型标签"个人参与"改为"本人参与"

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

frontend/mining-app/lib/presentation/pages/contribution/contribution_page.dart

@@ -263,7 +263,7 @@ class ContributionPage extends ConsumerWidget {
       ),
       child: Row(
         children: [
-          _buildStatColumn(context, '个人贡献值', contribution?.personalContribution, isLoading, false, hideAmounts),
+          _buildStatColumn(context, '本人贡献值', contribution?.personalContribution, isLoading, false, hideAmounts),
           _buildStatColumn(context, '同伴下贡献值', contribution?.teamLevelContribution, isLoading, true, hideAmounts),
           _buildStatColumn(context, '同伴上贡献值', contribution?.teamBonusContribution, isLoading, true, hideAmounts),
         ],
@@ -419,7 +419,7 @@ class ContributionPage extends ConsumerWidget {
                   icon: Icons.eco_outlined,
                   iconColor: _orange,
                   title: '本人',
-                  subtitle: '个人参与产生的贡献值',
+                  subtitle: '本人参与产生的贡献值',
                   amount: contribution?.personalContribution ?? '0',
                   hideAmounts: hideAmounts,
                 ),
@@ -479,7 +479,7 @@ class ContributionPage extends ConsumerWidget {
               ),
               const SizedBox(height: 2),
               ShimmerText(
-                placeholder: '个人参与产生的贡献值',
+                placeholder: '本人参与产生的贡献值',
                 style: TextStyle(fontSize: 12, color: AppColors.textSecondaryOf(context)),
               ),
             ],

frontend/mining-app/lib/presentation/pages/contribution/contribution_records_page.dart

@@ -99,7 +99,7 @@ class _ContributionRecordsListPageState extends ConsumerState<ContributionRecord
         children: [
           _buildFilterChip('全部', null),
           const SizedBox(width: 8),
-          _buildFilterChip('个人', ContributionSourceType.personal),
+          _buildFilterChip('本人', ContributionSourceType.personal),
           const SizedBox(width: 8),
           _buildFilterChip('同伴下贡献值', ContributionSourceType.teamLevel),
           const SizedBox(width: 8),
@@ -383,7 +383,7 @@ class _ContributionRecordsListPageState extends ConsumerState<ContributionRecord
 
     switch (type) {
       case ContributionSourceType.personal:
-        label = '个人参与';
+        label = '本人参与';
         bgColor = _orange.withOpacity(0.1);
         textColor = _orange;
         break;

frontend/mining-app/lib/presentation/pages/profile/team_page.dart

@@ -195,7 +195,7 @@ class _TeamPageState extends ConsumerState<TeamPage> {
         mainAxisAlignment: MainAxisAlignment.spaceAround,
         children: [
           _buildStatItem(
-            '个人参与',
+            '本人参与',
             '${_rootNode?.personalPlantingCount ?? 0} 棵',
             Icons.eco,
           ),

frontend/mining-app/lib/presentation/widgets/team_tree_widget.dart

@@ -472,8 +472,8 @@ class _NodeDetailsSheet extends StatelessWidget {
           _buildDetailRow('序列号', node.accountSequence),
           const SizedBox(height: 12),
 
-          // 个人参与数
+          // 本人参与数
-          _buildDetailRow('个人参与', '${node.personalPlantingCount} 棵'),
+          _buildDetailRow('本人参与', '${node.personalPlantingCount} 棵'),
           const SizedBox(height: 12),
 
           // 同伴参与数