- New includes/nav.php: sticky site-wide nav with Tools dropdown, Dashboard
link, compact language switcher, user identity → /account.php, Log out
- New account.php: credits & plan, profile, team, usage sections
- New api/corpus-summary.php: JSON endpoint for corpus doc count + last updated
- Replaces topbar in layout.php, layout_dashboard.php, and dashboard.php
- Fixes hardcoded Norwegian strings in dashboard.php credit cards via dbnToolsT()
- Adds 35 new i18n keys across all 4 languages (en/no/uk/pl) in i18n.php
- CSS: .dbn-nav navbar + .account-* account page styles in tools.css
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
