Enable the pdf output format on Read the Docs (the LaTeX build config
already existed in docs/conf.py) and add a "Downloads" line to the left
sidebar that links the offline formats (PDF, HTML zip, ePub). The links
are populated from the Read the Docs addons data, reusing the same
mechanism as the version selector, so they are version-correct and hidden
when unavailable. The line is left-aligned with the boxes above and the
table of contents below, with separators above and below it.
Also drop the stale 'resources' entry from latex_appendices (the page was
removed in #2088); it broke the now-enabled PDF build with a doctree
KeyError.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
a5ef482ca8