Development record

.abcd/development/brief/04-surfaces/22-site.md:160-166 says every repository gets the same seven pages and the pages block cannot add one, and .abcd/development/brief/04-surfaces/22-site.md:249-254 ends its written list with nothing else, nowhere else. A build also writes contributors/, references/, record/decision-log/, record/development/ and record/foundations/. PageNames (internal/core/site/pages.go:37) has seven names, with no switch for contributors or references, and the decision pages exist only under record.decisions. Lines 246-248 mention contributors and references only as inputs.