tulpa 0.1.0

First CRAN release. The engine's surface is unchanged from 0.0.198; the version number marks the release rather than a feature change.

What's Changed

• Renamed the local T bindings in spatiotemporal_effects() and plot.tulpa_st_summary(), and the T field of the internal precision_structures list, to n_t / n_times. T and F are not reserved words in R.
• Intra-chain OpenMP teams honour _R_CHECK_LIMIT_CORES_, capping at two threads under R CMD check. The cap lives in tulpa_omp_team_size(), so every team-size decision inherits it, and cpp_get_max_threads() reports the size a region would actually get.
• An outer axis whose grid does not contain its own posterior mode now says so (#401). .NL_AXIS_SD_REASONS is a closed vocabulary carried on the NA, stamped through as outer_grid_resolution_declined per axis; resolved requires every axis to have scored; the rail report is attached wherever the resolution is; and the note reports unscored axes and railing before the coarsest scored one.
• _pkgdown.yml's figures: block is removed (#400). The default ragg::agg_png renders the reference examples cleanly.
• pkgdown/build_site.R is the pkgdown deploy entry point (#402), holding root-level *.md files out of the build so they reach neither docs/ nor search.json.
• CRAN packaging: .aspell/ supplies the package dictionary CRAN's incoming aspell reads, and .Rbuildignore covers stray run markers.

The attached tarball is the archive checked on win-builder r-devel (2 NOTEs: new submission, and the Windows-only -Wa,-mbig-obj assembler flag).