CLAUDE.md: bump version to 0.12.0, function count to 132, test count to 22, add v0.10-0.12 SQL files to layout, add gist_equatorial.c, update function domains table, add DE moon equatorial to DE variants. Docs: add equatorial GiST operator class section to operators-gist.mdx (KNN queries, cone search, RA wrapping, polar behavior). Add 4 DE moon equatorial functions to functions-de.mdx (galilean, saturn, uranus, mars).