- app.js: hash-based router (#runs / #new / #profiles / #report/{runId})
- navigate() pushes history entries for back/forward support
- _restoreSession() reads hash on load and popstate
- sessionStorage fallback for same-tab refreshes
- run-card highlights selected run (.run-card.selected)
- runner.js: use App.navigate() for report redirect; persist lastRunId to sessionStorage
- index.html: report nav button starts disabled (enabled on run select/restore)
- app.css: .run-card.selected with petrol border + ring
Co-Authored-By: Claude <noreply@anthropic.com>