fix: Restore all files lost during destructive rebase

A previous `git pull --rebase origin main` dropped 177 local commits,
losing 3400+ files across admin-v2, backend, studio-v2, website,
klausur-service, and many other services. The partial restore attempt
(660295e2) only recovered some files.

This commit restores all missing files from pre-rebase ref 98933f5e
while preserving post-rebase additions (night-scheduler, night-mode UI,
NightModeWidget dashboard integration).

Restored features include:
- AI Module Sidebar (FAB), OCR Labeling, OCR Compare
- GPU Dashboard, RAG Pipeline, Magic Help
- Klausur-Korrektur (8 files), Abitur-Archiv (5+ files)
- Companion, Zeugnisse-Crawler, Screen Flow
- Full backend, studio-v2, website, klausur-service
- All compliance SDKs, agent-core, voice-service
- CI/CD configs, documentation, scripts

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

klausur-service/backend/routes/__init__.py

@@ -0,0 +1,35 @@
+"""
+Klausur-Service Routes
+
+API route modules for the Klausur service.
+"""
+
+from fastapi import APIRouter
+
+from .exams import router as exams_router
+from .students import router as students_router
+from .grading import router as grading_router
+from .fairness import router as fairness_router
+from .eh import router as eh_router
+from .archiv import router as archiv_router
+
+# Create main API router that includes all sub-routers
+api_router = APIRouter()
+
+# Include all route modules
+api_router.include_router(exams_router, tags=["Klausuren"])
+api_router.include_router(students_router, tags=["Students"])
+api_router.include_router(grading_router, tags=["Grading"])
+api_router.include_router(fairness_router, tags=["Fairness"])
+api_router.include_router(eh_router, tags=["BYOEH"])
+api_router.include_router(archiv_router, tags=["Abitur-Archiv"])
+
+__all__ = [
+    "api_router",
+    "exams_router",
+    "students_router",
+    "grading_router",
+    "fairness_router",
+    "eh_router",
+    "archiv_router",
+]