建议: 添加 Docling 集成,实现端到端文档提取

from docling.chunking import BaseChunk, BaseChunker, DocChunk, DocMeta from docling.document_converter import DocumentConverter from docling_core.transforms.serializer.markdown import MarkdownDocSerializer from docling_core.transforms.serializer.common import create_ser_result from docling_core.types import DoclingDocument as DLDocument from docling_core.types.doc.document import ( DocItem, InlineGroup, LevelNumber, ListGroup, ) from pydantic import ConfigDict from typing import Any, Iterator