[split-required] Split 58 monoliths across Python, Go, TypeScript (Phases 1-3)

Phase 1 — Python (klausur-service): 5 monoliths → 36 files
- dsfa_corpus_ingestion.py (1,828 LOC → 5 files)
- cv_ocr_engines.py (2,102 LOC → 7 files)
- cv_layout.py (3,653 LOC → 10 files)
- vocab_worksheet_api.py (2,783 LOC → 8 files)
- grid_build_core.py (1,958 LOC → 6 files)

Phase 2 — Go (edu-search-service, school-service): 8 monoliths → 19 files
- staff_crawler.go (1,402 → 4), policy/store.go (1,168 → 3)
- policy_handlers.go (700 → 2), repository.go (684 → 2)
- search.go (592 → 2), ai_extraction_handlers.go (554 → 2)
- seed_data.go (591 → 2), grade_service.go (646 → 2)

Phase 3 — TypeScript (admin-lehrer): 45 monoliths → 220+ files
- sdk/types.ts (2,108 → 16 domain files)
- ai/rag/page.tsx (2,686 → 14 files)
- 22 page.tsx files split into _components/ + _hooks/
- 11 component files split into sub-components
- 10 SDK data catalogs added to loc-exceptions
- Deleted dead backup index_original.ts (4,899 LOC)

All original public APIs preserved via re-export facades.
Zero new errors: Python imports verified, Go builds clean,
TypeScript tsc --noEmit shows only pre-existing errors.

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

admin-lehrer/lib/sdk/export-pdf-helpers.ts

@@ -0,0 +1,99 @@
+/**
+ * PDF Export Helper Functions
+ * Shared formatting utilities for jsPDF document generation
+ */
+
+import jsPDF from 'jspdf'
+import { SDKState } from './types'
+import { LABELS_DE } from './export-types'
+
+// =============================================================================
+// FORMATTING HELPERS
+// =============================================================================
+
+export function formatDate(date: Date | string | undefined): string {
+  if (!date) return '-'
+  const d = typeof date === 'string' ? new Date(date) : date
+  return d.toLocaleDateString('de-DE', {
+    day: '2-digit',
+    month: '2-digit',
+    year: 'numeric',
+    hour: '2-digit',
+    minute: '2-digit',
+  })
+}
+
+// =============================================================================
+// PAGE LAYOUT HELPERS
+// =============================================================================
+
+export function addHeader(doc: jsPDF, title: string, pageNum: number, totalPages: number): void {
+  const pageWidth = doc.internal.pageSize.getWidth()
+
+  // Header line
+  doc.setDrawColor(147, 51, 234) // Purple
+  doc.setLineWidth(0.5)
+  doc.line(20, 15, pageWidth - 20, 15)
+
+  // Title
+  doc.setFontSize(10)
+  doc.setTextColor(100)
+  doc.text(title, 20, 12)
+
+  // Page number
+  doc.text(`${LABELS_DE.page} ${pageNum}/${totalPages}`, pageWidth - 40, 12)
+}
+
+export function addFooter(doc: jsPDF, state: SDKState): void {
+  const pageWidth = doc.internal.pageSize.getWidth()
+  const pageHeight = doc.internal.pageSize.getHeight()
+
+  // Footer line
+  doc.setDrawColor(200)
+  doc.setLineWidth(0.3)
+  doc.line(20, pageHeight - 15, pageWidth - 20, pageHeight - 15)
+
+  // Footer text
+  doc.setFontSize(8)
+  doc.setTextColor(150)
+  doc.text(`Tenant: ${state.tenantId} | ${LABELS_DE.generatedAt}: ${formatDate(new Date())}`, 20, pageHeight - 10)
+}
+
+// =============================================================================
+// CONTENT HELPERS
+// =============================================================================
+
+export function addSectionTitle(doc: jsPDF, title: string, y: number): number {
+  doc.setFontSize(14)
+  doc.setTextColor(147, 51, 234) // Purple
+  doc.setFont('helvetica', 'bold')
+  doc.text(title, 20, y)
+  doc.setFont('helvetica', 'normal')
+  return y + 10
+}
+
+export function addSubsectionTitle(doc: jsPDF, title: string, y: number): number {
+  doc.setFontSize(11)
+  doc.setTextColor(60)
+  doc.setFont('helvetica', 'bold')
+  doc.text(title, 25, y)
+  doc.setFont('helvetica', 'normal')
+  return y + 7
+}
+
+export function addText(doc: jsPDF, text: string, x: number, y: number, maxWidth: number = 170): number {
+  doc.setFontSize(10)
+  doc.setTextColor(60)
+  const lines = doc.splitTextToSize(text, maxWidth)
+  doc.text(lines, x, y)
+  return y + lines.length * 5
+}
+
+export function checkPageBreak(doc: jsPDF, y: number, requiredSpace: number = 40): number {
+  const pageHeight = doc.internal.pageSize.getHeight()
+  if (y + requiredSpace > pageHeight - 25) {
+    doc.addPage()
+    return 30
+  }
+  return y
+}