Rewrite deployment guides to match current admission flow

Merge branch 'ui-fonts-and-layout' into integration-main

Refine web fonts, theme, header sorting, operator editor, and settings

Add staging upgrade tooling and runbook for font migration

Persist status page font family through backend and migrations

feat: migrate hosted product to PostgreSQL

Refine web fonts, theme, header sorting, operator editor, and settings

Redesign web admin interface and document design system

Remove identification note from landing page

remove legacy infra