Regenerate documentation with roxygen2 8.0.0

[zeehio]

Summary

Ran devtools::document() (roxygen2 8.0.0, up from the RoxygenNote: 7.3.1 pin — the R 4.6/devtools toolchain set up while investigating the CI issues in #73 doesn't have 7.3.1 available). Beyond the version bump itself, this picks up two real improvements:

• Markdown bullet lists now render correctly. roxygen2 7.3.1 left - item bullet lists inside @param/@return docs as literal, un-rendered text in the generated .Rd files (e.g. nmr_normalize's method argument documentation). roxygen2 8.0.0 correctly converts these into \itemize{} blocks, so they'll actually render as bulleted lists in ?nmr_normalize and similar help pages.
• Picks up the Fix broken roxygen cross-references to @noRd functions #74 cross-reference fixes in the generated man pages (nothing further needed there — just confirming they're reflected).

The remaining bulk of the diff is \code{\link{x}()} → \code{\link[=x]{x()}} link-markup style changes across all 68 man pages — no content changes, just how roxygen2 8.0.0 formats @family/@seealso cross-references.

DESCRIPTION now records Config/roxygen2/version: 8.0.0 instead of RoxygenNote: 7.3.1 (roxygen2 8.0's own naming convention for this field).

Test plan

• devtools::document() runs with no warnings
• R CMD INSTALL . succeeds, including vignette building
• library(AlpsNMR) loads cleanly

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Generated by Claude Code