solar-conditions-provenance.md was in the tree but absent from the
mkdocs nav and unlinked from anywhere, so it never appeared on the docs
site. Added under a Project section and linked from the solar command
entry, where a reader would look for it.
Removes the kg7qin PR integration log — an internal development record
that was excluded from the docs build but still shipped in the repo —
along with the now-dead exclude glob.