F1: create ToC

[yizhenpong]

do a chained structure

retrieve contents page key value pair (value is page number)

second chain is to order it

third chain is to provide it in a code format for easy indexing - might change this from "2:7" to 2,3,4,5,6,7.... depends on which is more feasible

• also need to test function in data helper whether it can accurately get the indexing right
• then edit the base RAG model - where there is the section for RAG + TOC - make sure the indexing is right

[yizhenpong]

no need to do the third chain - split to another feature of filter

[yizhenpong]

the chain not working

[yizhenpong]

created TOC > use it to genearte the themes directly for outline

aftewrards consider implement tree of thoughts for better outline