Get all PsychArchives links: real hyperlinks from the paper's own url
table, plus a body-text fallback for a BARE mention (a handle like
"20.500.12034/17526" is routinely cited without any URL scheme at all)
that the source PDF/HTML never encoded as an actual hyperlink — the url
table only ever contains links the source document itself made clickable.
Same two-tier approach github_links() uses for GitHub.
Examples
paper <- demopaper()
psycharchives_links(paper)
#> # A tibble: 0 × 4
#> # ℹ 4 variables: href <chr>, link_text <chr>, text_id <int>, paper_id <chr>