GET /api/graph — the whole Knowledge Graph payload (nodes, edges, project
options, categories, tags) in one request over libraryFetch.
Parameters
excludeSingleAuthors: boolean
drop authors linked to only one paper. Applied by
the backend, so those authors leave the payload entirely — the page's Author
filter matches GraphPaper.author_keys, which is narrowed with them.
GET /api/graph— the whole Knowledge Graph payload (nodes, edges, project options, categories, tags) in one request overlibraryFetch.