feat(更新布局检测器类别): 在MinerUVLLayoutDetector类中添加对印章和图表类别的支持，优化文档解析能力。

ocr_tools/universal_doc_parser/models/adapters/mineru_adapter.py

@@ -246,6 +246,8 @@ class MinerUVLLayoutDetector(BaseLayoutDetector):
         "ref_text": "ref_text",
         "code": "code",
         "algorithm": "algorithm",
+        "seal": "seal",
+        "chart": "chart",
         "list": "text",  # 列表块按文本处理（pipeline TEXT_CATEGORIES）
         "phonetic": "text",