fix(dashboard): remove failing evolution/health API calls

The useEvolutionStatistics and useSystemHealth hooks call endpoints that
depend on a non-existent knowledge-service internal API. Removed these
calls and the related UI sections to prevent 500 errors.

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

packages/admin-client/src/features/dashboard/presentation/pages/DashboardPage.tsx

@@ -1,12 +1,10 @@
 import { useMemo } from 'react';
-import { Card, Row, Col, Statistic, Tag, Progress, List, Typography, Spin } from 'antd';
+import { Card, Row, Col, Statistic, Typography, Spin } from 'antd';
 import {
   UserOutlined,
   MessageOutlined,
   DollarOutlined,
   RobotOutlined,
-  CheckCircleOutlined,
-  ClockCircleOutlined,
 } from '@ant-design/icons';
 import {
   LineChart,
@@ -20,11 +18,9 @@ import {
   Pie,
   Cell,
 } from 'recharts';
-import { useEvolutionStatistics, useSystemHealth } from '../../application';
 import { useTodayStatistics, useTrendData, useStatisticsByCategory } from '../../../analytics/application';
-import type { HealthMetric } from '../../infrastructure';
 
-const { Title, Text } = Typography;
+const { Title } = Typography;
 
 // Category color mapping
 const CATEGORY_COLORS: Record<string, string> = {
@@ -39,9 +35,6 @@ const CATEGORY_COLORS: Record<string, string> = {
 };
 
 export function DashboardPage() {
-  const { data: evolutionStats } = useEvolutionStatistics();
-  const { data: healthReport } = useSystemHealth();
-
   // Analytics data from real API
   const { data: todayStats, isLoading: loadingToday } = useTodayStatistics();
   const { data: trendData, isLoading: loadingTrend } = useTrendData(7, ['newConversations', 'newUsers']);
@@ -92,19 +85,6 @@ export function DashboardPage() {
     })).filter(d => d.value > 0);
   }, [categoryStats]);
 
-  const getHealthColor = (status: string) => {
-    switch (status) {
-      case 'healthy':
-        return 'success';
-      case 'warning':
-        return 'warning';
-      case 'critical':
-        return 'error';
-      default:
-        return 'default';
-    }
-  };
-
   return (
     <div className="p-6">
       <Title level={4} className="mb-6">仪表盘</Title>
@@ -232,111 +212,6 @@ export function DashboardPage() {
         </Col>
       </Row>
 
-      {/* System Status */}
-      <Row gutter={[16, 16]} className="mt-4">
-        <Col xs={24} lg={12}>
-          <Card
-            title={
-              <div className="flex items-center justify-between">
-                <span>系统健康</span>
-                <Tag color={getHealthColor(healthReport?.overall || 'healthy')}>
-                  {healthReport?.overall === 'healthy'
-                    ? '健康'
-                    : healthReport?.overall === 'warning'
-                    ? '警告'
-                    : '异常'}
-                </Tag>
-              </div>
-            }
-          >
-            <List
-              dataSource={healthReport?.metrics || []}
-              renderItem={(item: HealthMetric) => (
-                <List.Item>
-                  <div className="w-full">
-                    <div className="flex justify-between mb-1">
-                      <Text>{item.name}</Text>
-                      <Text type="secondary">
-                        {item.value} / {item.threshold}
-                      </Text>
-                    </div>
-                    <Progress
-                      percent={Math.min(100, (item.value / item.threshold) * 100)}
-                      status={
-                        item.status === 'good'
-                          ? 'success'
-                          : item.status === 'warning'
-                          ? 'exception'
-                          : 'active'
-                      }
-                      showInfo={false}
-                      size="small"
-                    />
-                  </div>
-                </List.Item>
-              )}
-            />
-            {(healthReport?.recommendations?.length ?? 0) > 0 && (
-              <div className="mt-4 p-3 bg-yellow-50 rounded">
-                <Text type="warning">建议：</Text>
-                <ul className="mt-2 ml-4 text-sm text-gray-600">
-                  {healthReport?.recommendations?.map((rec: string, i: number) => (
-                    <li key={i}>{rec}</li>
-                  ))}
-                </ul>
-              </div>
-            )}
-          </Card>
-        </Col>
-        <Col xs={24} lg={12}>
-          <Card title="经验学习进度">
-            <Row gutter={[16, 16]}>
-              <Col span={12}>
-                <Statistic
-                  title="总经验"
-                  value={evolutionStats?.totalExperiences || 0}
-                  prefix={<RobotOutlined />}
-                />
-              </Col>
-              <Col span={12}>
-                <Statistic
-                  title="活跃经验"
-                  value={evolutionStats?.activeExperiences || 0}
-                  prefix={<CheckCircleOutlined />}
-                  valueStyle={{ color: '#52c41a' }}
-                />
-              </Col>
-              <Col span={12}>
-                <Statistic
-                  title="待审核"
-                  value={evolutionStats?.pendingExperiences || 0}
-                  prefix={<ClockCircleOutlined />}
-                  valueStyle={{ color: '#faad14' }}
-                />
-              </Col>
-              <Col span={12}>
-                <Statistic
-                  title="已审核"
-                  value={evolutionStats?.approvedExperiences || 0}
-                  prefix={<CheckCircleOutlined />}
-                />
-              </Col>
-            </Row>
-            <div className="mt-4">
-              <Text type="secondary">经验类型分布</Text>
-              <div className="mt-2">
-                {evolutionStats?.topExperienceTypes?.map(
-                  (item: { type: string; count: number }) => (
-                    <Tag key={item.type} className="mb-1">
-                      {item.type}: {item.count}
-                    </Tag>
-                  )
-                )}
-              </div>
-            </div>
-          </Card>
-        </Col>
-      </Row>
     </div>
   );
 }