Restructure: Move 47 cv_* files into ocr/ package

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

klausur-service/backend/ocr/detect/__init__.py

@@ -0,0 +1,2 @@
+"""Detection sub-package (boxes, graphics, colors, syllables, doclayout)."""
+from .box_detect import *  # noqa: F401,F403

klausur-service/backend/ocr/detect/box_detect.py

@@ -21,7 +21,7 @@ from typing import List, Optional, Tuple
 import cv2
 import numpy as np
 
-from cv_vocab_types import DetectedBox, PageZone
+from ..types import DetectedBox, PageZone
 
 logger = logging.getLogger(__name__)
 

klausur-service/backend/ocr/detect/graphic_detect.py

@@ -127,7 +127,7 @@ def detect_graphic_elements(
     backend = os.environ.get("GRAPHIC_DETECT_BACKEND", "auto")
     if backend in ("doclayout", "auto"):
         try:
-            from cv_doclayout_detect import detect_layout_regions, is_doclayout_available
+            from .doclayout_detect import detect_layout_regions, is_doclayout_available
             if is_doclayout_available():
                 regions = detect_layout_regions(img_bgr)
                 if regions:

klausur-service/backend/ocr/detect/syllable/__init__.py

@@ -0,0 +1,2 @@
+"""Syllable detection sub-package."""
+from .detect import *  # noqa: F401,F403

klausur-service/backend/ocr/detect/syllable/detect.py

@@ -10,7 +10,7 @@ DATENSCHUTZ: Alle Verarbeitung erfolgt lokal.
 """
 
 # Core: init, validation, autocorrect
-from cv_syllable_core import (  # noqa: F401
+from .core import (  # noqa: F401
     _IPA_RE,
     _STOP_WORDS,
     _get_hyphenators,
@@ -23,7 +23,7 @@ from cv_syllable_core import (  # noqa: F401
 )
 
 # Merge: gap merging, syllabify, insert
-from cv_syllable_merge import (  # noqa: F401
+from .merge import (  # noqa: F401
     _try_merge_pipe_gaps,
     merge_word_gaps_in_zones,
     _try_merge_word_gaps,

klausur-service/backend/ocr/detect/syllable/merge.py

@@ -13,7 +13,7 @@ from typing import Any, Dict, List, Optional
 
 import numpy as np
 
-from cv_syllable_core import (
+from .core import (
     _get_hyphenators,
     _hyphenate_word,
     _IPA_RE,