fix: Update OCR confidence threshold in bank_statement_wired_unet.yaml to improve cell recognition accuracy

ocr_tools/universal_doc_parser/config/bank_statement_wired_unet.yaml

@@ -36,7 +36,7 @@ table_recognition_wired:
   need_ocr: true
   row_threshold: 10
   col_threshold: 15
-  ocr_conf_threshold: 0.5
+  ocr_conf_threshold: 0.8       # 单元格 OCR 置信度阈值
   cell_crop_margin: 2
   use_custom_postprocess: true  # 是否使用自定义后处理（默认启用）