Initial commit: breakpilot-lehrer - Lehrer KI Platform

Services: Admin-Lehrer, Backend-Lehrer, Studio v2, Website,
Klausur-Service, School-Service, Voice-Service, Geo-Service,
BreakPilot Drive, Agent-Core

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

admin-lehrer/app/api/admin/audit/sessions/[sessionId]/pdf/route.ts

@@ -0,0 +1,66 @@
+/**
+ * Audit Session PDF Report API Route - Proxy to Backend
+ */
+
+import { NextRequest, NextResponse } from 'next/server'
+
+const BACKEND_URL = process.env.BACKEND_URL || 'http://localhost:8000'
+
+// Generate PDF report for audit session
+export async function GET(
+  request: NextRequest,
+  { params }: { params: Promise<{ sessionId: string }> }
+) {
+  try {
+    const { sessionId } = await params
+    const authHeader = request.headers.get('Authorization')
+    const { searchParams } = new URL(request.url)
+
+    const language = searchParams.get('language') || 'de'
+    const includeSignatures = searchParams.get('include_signatures') !== 'false'
+
+    const queryParams = new URLSearchParams({
+      language,
+      include_signatures: String(includeSignatures)
+    })
+
+    const response = await fetch(
+      `${BACKEND_URL}/api/v1/compliance/audit/sessions/${sessionId}/report/pdf?${queryParams}`,
+      {
+        method: 'GET',
+        headers: {
+          ...(authHeader ? { 'Authorization': authHeader } : {})
+        },
+        signal: AbortSignal.timeout(60000) // 60s timeout for PDF generation
+      }
+    )
+
+    if (!response.ok) {
+      const errorText = await response.text()
+      return NextResponse.json(
+        { error: `Backend Error: ${response.status}`, details: errorText },
+        { status: response.status }
+      )
+    }
+
+    // Stream the PDF response
+    const pdfBuffer = await response.arrayBuffer()
+    const contentDisposition = response.headers.get('Content-Disposition') ||
+      `attachment; filename=audit-report-${sessionId}.pdf`
+
+    return new NextResponse(pdfBuffer, {
+      status: 200,
+      headers: {
+        'Content-Type': 'application/pdf',
+        'Content-Disposition': contentDisposition,
+        'Content-Length': String(pdfBuffer.byteLength)
+      }
+    })
+  } catch (error) {
+    console.error('Audit PDF proxy error:', error)
+    return NextResponse.json(
+      { error: 'PDF-Generierung fehlgeschlagen' },
+      { status: 503 }
+    )
+  }
+}