v0.1.1

Second release of GenomicSEM-rs. Patch release on top of v0.1.0 with
pre-built R binaries, Windows R support, the CHANGELOG.md file, and
a handful of R CMD check fixes.

Full diff: v0.1.0...v0.1.1

Added

• Pre-built R binary packages for Linux, macOS, and Windows attached
  to every GitHub release. Users no longer need a Rust toolchain to
  install gsemr — pick the platform-native file from the release page
  and run install.packages(<url>, repos = NULL). Source tarball +
  remotes::install_github remain as the "from source" fallback for
  unmatched R versions and dev builds.
• R package now ships with full Windows build support: configure.win,
  src/Makevars.win, and -Wl,--export-all-symbols in the MinGW link
  line so R .Call("wrap__*_rust", ...) resolves at runtime on
  Windows. R CMD check is green on ubuntu / macos / windows.
• workflow_dispatch trigger on publish.yml with a release_tag
  input, so the R-only job path can be manually re-run against an
  existing release (to ship a late R binary or fix without burning a
  crates.io / PyPI version slot).
• readme = "README.md" and [project.urls] in
  bindings/python/pyproject.toml so the PyPI project page renders a
  description with links to the repo, issue tracker, and architecture
  docs. (The 0.1.0 wheels shipped before this landed — the PyPI 0.1.0
  page will continue to show "no project description" until 0.1.1 is
  uploaded.)

Changed

• bindings/python/README.md: absolute GitHub URLs instead of
  relative ../../API_COMPAT.md / ../../ARCHITECTURE.md links
  (which don't render on PyPI); function list expanded from 10 to all
  17 exports and grouped as Core pipeline vs Advanced.
• Root README.md: R install section restructured — binary
  packages as the primary path, source install demoted to a "From
  source" subsection. New Rust MSRV (1.88+) badge.
• R package internal cleanup:
  • Explicit importFrom(stats, pnorm, setNames) /
    importFrom(utils, read.table, write.table) in NAMESPACE,
    clearing the "no visible global function definition" notes.
  • @param out added to sumstats.R + regenerated sumstats.Rd
    (fixes an "Undocumented arguments in Rd file" WARNING).
  • {chr} in ldsc.R's @param ld description escaped to
    \code{<chr>.l2.ldscore.gz} (fixes "Lost braces" NOTE).
  • configure / configure.win print rustc --version / cargo --version before the build (fixes "No rustc version reported"
    WARNING).
  • configure / configure.win now rm -rf src/rust/target after
    copying out libgsemr.a, so R CMD check doesn't scan a duplicate
    rust/target/release/libgsemr.a and double-report the Rust
    stdlib's _exit / abort / exit symbols.

Removed

• PyLdscResult.to_json() and gsem.LdscResult.from_json(s) — the
  json: String field and the conversions::json_to_ldsc helper that
  backed them. These were dead compat from the pre-NumPy era; every hot
  path has been reading s / v / i_mat through NumPy getters for a
  while. This is the only user-visible break in 0.1.1. Callers who
  were serializing LDSC results to disk should use pickle or pass the
  result object directly into downstream functions (all 17 exported
  functions accept it).

Fixed

• read_sumstats aborted on NA tokens, so .sumstats.gz files that
  worked in GenomicSEM::ldsc failed in gsemr::ldsc with a cryptic
  gsemr::ldsc error: invalid N long before sample.prev /
  population.prev were even evaluated. GenomicSEM tolerates these
  files because its reader calls na.omit(read_delim(...)); gsemr now
  matches that behaviour — rows whose N or Z field is an NA token
  (empty, ., NA, NaN, N/A, NULL; case-insensitive) are
  silently dropped, with a one-line INFO log naming the file and the
  dropped-row count. Genuine parse failures now report file path, line
  number, and the offending value, and load_trait_data wraps the
  error with the failing file path so multi-trait runs tell you which
  input went bad. (crates/gsem/src/io/gwas_reader.rs)
• publish.yml skip cascade: check-r-package and
  upload-r-to-release no longer inherit the implicit if: success()
  gate, which was evaluating to false on workflow_dispatch runs
  (because publish-crates is skipped there). They now use
  if: always() && needs.<upstream>.result == 'success' and proceed
  as long as their direct needs are green.
• Versioned workspace deps: root Cargo.toml internal deps now
  carry version = "0.1.0" alongside path, required by
  cargo publish for inter-crate references.
• R binding Cargo patch: bindings/r/src/rust/Cargo.toml declares
  internal crates at crates.io versions and uses [patch.crates-io]
  to redirect to the in-repo sources when available. configure
  strips the patch block when the local crates aren't reachable
  (tarball install), so cargo falls back to the published crates
  cleanly.