[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/components/ocr-pipeline/ExcludeRegionsList.tsx

@@ -0,0 +1,39 @@
+'use client'
+
+import type { ExcludeRegion } from '@/app/(admin)/ai/ocr-kombi/types'
+
+interface ExcludeRegionsListProps {
+  regions: ExcludeRegion[]
+  onDeleteRegion: (index: number) => void
+}
+
+export function ExcludeRegionsList({ regions, onDeleteRegion }: ExcludeRegionsListProps) {
+  if (regions.length === 0) return null
+
+  return (
+    <div className="bg-red-50 dark:bg-red-900/10 rounded-lg border border-red-200 dark:border-red-800 p-3">
+      <h4 className="text-xs font-medium text-red-700 dark:text-red-400 mb-2">
+        Ausschlussbereiche ({regions.length}) — Woerter in diesen Bereichen werden nicht erkannt
+      </h4>
+      <div className="space-y-1">
+        {regions.map((region, i) => (
+          <div key={i} className="flex items-center gap-3 text-xs">
+            <span className="w-3 h-3 rounded-sm flex-shrink-0 bg-red-500/30 border border-red-500" />
+            <span className="text-red-700 dark:text-red-400 font-medium">
+              {region.label || `Bereich ${i + 1}`}
+            </span>
+            <span className="font-mono text-red-600/70 dark:text-red-400/70">
+              {region.w}x{region.h}px @ ({region.x}, {region.y})
+            </span>
+            <button
+              onClick={() => onDeleteRegion(i)}
+              className="ml-auto text-red-500 hover:text-red-700 dark:hover:text-red-300"
+            >
+              Entfernen
+            </button>
+          </div>
+        ))}
+      </div>
+    </div>
+  )
+}