feat: 更新适配器包初始化，添加文档预处理适配器相关功能

zhch/adapters/__init__.py

@@ -7,8 +7,22 @@ from .table_recognition_adapter import (
     enhanced_predict_single_table_recognition_res
 )
 
+from .doc_preprocessor_adapter import (
+    apply_enhanced_doc_preprocessor,
+    restore_paddlex_doc_preprocessor,
+    DocPreprocessorAdapter,
+    EnhancedDocPreprocessor,
+)
+
 __all__ = [
+    # 表格识别适配器
     'apply_table_recognition_adapter',
     'restore_original_function',
-    'enhanced_predict_single_table_recognition_res'
+    'enhanced_predict_single_table_recognition_res',
+
+    # 文档预处理适配器
+    'apply_enhanced_doc_preprocessor',
+    'restore_paddlex_doc_preprocessor',
+    'DocPreprocessorAdapter',
+    'EnhancedDocPreprocessor',
 ]