Fix: Remove broken getKlausurApiUrl and clean up empty lines

sed replacement left orphaned hostname references in story page
and empty lines in getApiBase functions.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

admin-lehrer/app/(admin)/ai/test-quality/_components/OverviewTab.tsx

@@ -0,0 +1,108 @@
+'use client'
+
+import type { BQASMetrics, TrendData, TestRun } from '../types'
+import { MetricCard } from './MetricCard'
+import { TrendChart } from './TrendChart'
+import { TestSuiteCard } from './TestSuiteCard'
+
+export function OverviewTab({
+  goldenMetrics,
+  syntheticMetrics,
+  ragMetrics,
+  trendData,
+  testRuns,
+  isRunningGolden,
+  isRunningSynthetic,
+  isRunningRag,
+  runGoldenTests,
+  runSyntheticTests,
+  runRagTests,
+}: {
+  goldenMetrics: BQASMetrics | null
+  syntheticMetrics: BQASMetrics | null
+  ragMetrics: BQASMetrics | null
+  trendData: TrendData | null
+  testRuns: TestRun[]
+  isRunningGolden: boolean
+  isRunningSynthetic: boolean
+  isRunningRag: boolean
+  runGoldenTests: () => void
+  runSyntheticTests: () => void
+  runRagTests: () => void
+}) {
+  return (
+    <div className="space-y-6">
+      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-4">
+        <MetricCard
+          title="Golden Score"
+          value={goldenMetrics?.avg_composite_score.toFixed(2) || '-'}
+          subtitle="Durchschnitt aller Golden Tests"
+          trend={trendData?.trend === 'improving' ? 'up' : trendData?.trend === 'declining' ? 'down' : 'stable'}
+          color="blue"
+        />
+        <MetricCard
+          title="Pass Rate"
+          value={goldenMetrics ? `${((goldenMetrics.passed_tests / goldenMetrics.total_tests) * 100).toFixed(0)}%` : '-'}
+          subtitle={goldenMetrics ? `${goldenMetrics.passed_tests}/${goldenMetrics.total_tests} bestanden` : undefined}
+          color="green"
+        />
+        <MetricCard
+          title="RAG Qualitaet"
+          value={ragMetrics?.avg_composite_score.toFixed(2) || '-'}
+          subtitle="RAG Retrieval Score"
+          color="purple"
+        />
+        <MetricCard
+          title="Test Runs"
+          value={testRuns.length}
+          subtitle="Letzte 30 Tage"
+          color="yellow"
+        />
+      </div>
+
+      <div className="bg-white rounded-xl border border-slate-200 p-6">
+        <h3 className="text-lg font-semibold text-slate-900 mb-4">Score-Trend (30 Tage)</h3>
+        <TrendChart data={trendData || { dates: [], scores: [], trend: 'insufficient_data' }} />
+      </div>
+
+      <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
+        <TestSuiteCard
+          title="Golden Suite"
+          description="97 validierte Referenz-Tests fuer Intent-Erkennung"
+          metrics={goldenMetrics || undefined}
+          onRun={runGoldenTests}
+          isRunning={isRunningGolden}
+        />
+        <TestSuiteCard
+          title="RAG/Korrektur Tests"
+          description="EH-Retrieval, Operatoren-Alignment, Citation Tests"
+          metrics={ragMetrics || undefined}
+          onRun={runRagTests}
+          isRunning={isRunningRag}
+        />
+        <TestSuiteCard
+          title="Synthetic Tests"
+          description="LLM-generierte Variationen fuer Robustheit"
+          metrics={syntheticMetrics || undefined}
+          onRun={runSyntheticTests}
+          isRunning={isRunningSynthetic}
+        />
+      </div>
+
+      {/* Quick Help */}
+      <div className="bg-blue-50 border border-blue-200 rounded-xl p-4">
+        <div className="flex items-start gap-3">
+          <svg className="w-5 h-5 text-blue-600 flex-shrink-0 mt-0.5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
+          </svg>
+          <div>
+            <p className="text-sm text-blue-800">
+              <strong>Neu hier?</strong> Wechseln Sie zum Tab &quot;Anleitung&quot; fuer eine ausfuehrliche Erklaerung
+              des BQAS-Systems und wie Sie es nutzen koennen.
+            </p>
+          </div>
+        </div>
+      </div>
+    </div>
+  )
+}