feat: add document structure into GraphRAG

[KingSkyLi]

[Aries-ckt]

it looks like db upsert error.

 document embedding, failed:xx.txt, Query execution failed: {code: ParserException} {message: ParserException: line 3:12 no

 viable alternative at input 'CALL db.upsertVertex("chunk", [{id: "62c3475f-3ecf-4520-ae97-88336aaca5fe", name: 

"none_header_chunk", content: d748118572'}

[Appointat]

@KingSkyLi Hi, I was assigned to help review this pr, could you please explain what kind of the doc structure needed to be added in the graph? Thanks a lot!

[Appointat]

I will run the ut/it. and reformat the code today.

[Aries-ckt]

@KingSkyLi @Appointat i have met the problem when upload file.

2024-10-17 18:06:45 B-V0ECMD6R-0244.local dbgpt.serve.rag.service.service[90267] ERROR document embedding, failed:读写分离.md, 'Vertex' object has no attribute 'type'

[Aries-ckt]

Test Success

[Appointat]