Restructure: Move 47 cv_* files into ocr/ package

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

klausur-service/backend/ocr/layout/layout.py

@@ -21,14 +21,14 @@ from typing import Any, Dict, List, Optional, Tuple
 
 import numpy as np
 
-from cv_vocab_types import ColumnGeometry, DetectedBox, PageRegion
+from ..types import ColumnGeometry, DetectedBox, PageRegion
 
 logger = logging.getLogger(__name__)
 
 
 # ── Re-exports (backward compatibility) ───────────────────────────────────
 
-from cv_layout_detection import (  # noqa: F401
+from .detection import (  # noqa: F401
     detect_document_type,
     create_ocr_image,
     create_layout_image,
@@ -39,46 +39,46 @@ from cv_layout_detection import (  # noqa: F401
     _add_header_footer,
 )
 
-from cv_layout_analyze import (  # noqa: F401
+from .analyze import (  # noqa: F401
     analyze_layout,
 )
 
-from cv_layout_columns import (  # noqa: F401
+from .columns import (  # noqa: F401
     detect_column_geometry,
     _detect_columns_by_clustering,
     _build_geometries_from_starts,
 )
 
-from cv_layout_column_refine import (  # noqa: F401
+from .column_refine import (  # noqa: F401
     _detect_sub_columns,
     _split_broad_columns,
     expand_narrow_columns,
 )
 
-from cv_layout_rows import (  # noqa: F401
+from .rows import (  # noqa: F401
     detect_row_geometry,
     _build_rows_from_word_grouping,
 )
 
-from cv_layout_row_regularize import (  # noqa: F401
+from .row_regularize import (  # noqa: F401
     _regularize_row_grid,
 )
 
-from cv_layout_scoring import (  # noqa: F401
+from .scoring import (  # noqa: F401
     _score_language,
     _score_role,
     _score_dictionary_signals,
     _classify_dictionary_columns,
 )
 
-from cv_layout_classify import (  # noqa: F401
+from .classify import (  # noqa: F401
     _build_margin_regions,
     positional_column_regions,
     classify_column_types,
     _classify_by_content,
 )
 
-from cv_layout_classify_position import (  # noqa: F401
+from .classify_position import (  # noqa: F401
     _classify_by_position_enhanced,
     _classify_by_position_fallback,
 )
@@ -143,7 +143,7 @@ def detect_column_geometry_zoned(
        per content zone on the corresponding sub-image.
     4. If no boxes: delegates entirely to detect_column_geometry().
     """
-    from cv_box_detect import detect_boxes, split_page_into_zones
+    from ..detect.box_detect import detect_boxes, split_page_into_zones
 
     geo_result = detect_column_geometry(ocr_img, dewarped_bgr)
     if geo_result is None: