Restructure: Move ocr_pipeline + labeling + crop into ocr/ package

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

klausur-service/backend/ocr_pipeline_postprocess.py

@@ -1,26 +1,4 @@
-"""
-OCR Pipeline Postprocessing API — composite router assembling LLM review,
-reconstruction, export, validation, image detection/generation, and
-handwriting removal endpoints.
-
-Split into sub-modules:
-  ocr_pipeline_llm_review      — LLM review + apply corrections
-  ocr_pipeline_reconstruction  — reconstruction save, Fabric JSON, merged entries, PDF/DOCX
-  ocr_pipeline_validation      — image detection, generation, validation, handwriting removal
-
-Lizenz: Apache 2.0
-DATENSCHUTZ: Alle Verarbeitung erfolgt lokal.
-"""
-
-from fastapi import APIRouter
-
-from ocr_pipeline_llm_review import router as _llm_review_router
-from ocr_pipeline_reconstruction import router as _reconstruction_router
-from ocr_pipeline_validation import router as _validation_router
-
-# Composite router — drop-in replacement for the old monolithic router.
-# ocr_pipeline_api.py imports ``from ocr_pipeline_postprocess import router``.
-router = APIRouter()
-router.include_router(_llm_review_router)
-router.include_router(_reconstruction_router)
-router.include_router(_validation_router)
+# Backward-compat shim -- module moved to ocr/pipeline/postprocess.py
+import importlib as _importlib
+import sys as _sys
+_sys.modules[__name__] = _importlib.import_module("ocr.pipeline.postprocess")