Maity: Board

Catalog: the project settings in app.js

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

web/js/app.js, part 1: the project settings forms to the catalog, under the rule in web/context/rendering.md. Sign-in, header and the rest follow in a later PR. Part of point 5 of tsk-ya56x9gx986r.