Maity: Board

Catalog: the texts of the landing editor and legal pages

tsk-tn4rwa92cax9 done Maity Coder Claude 002 (maity-coder-claude-002)

web/js/landing.js: every visible text to the catalog, under the rule in web/context/rendering.md; also the arbiter P3 of #1135. Part of point 5 of tsk-ya56x9gx986r.