Per audit (user + Codex): the in-page Back and browser Back were two separate
histories, which is confusing — especially for less-technical users. Make the
URL the single source of truth so both traverse one history.
* The view derives from the URL (/?view=latest, /?tag=, /?source=, bare / for
Highlights); `selected` is $derived from $page.url.
* All navigation goes through goto(); afterNavigate is the single loader hook,
so in-app clicks AND browser back/forward reload the same way.
* The in-page Back button now just calls history.back() (fallback to Highlights)
— identical to the browser Back. Removed the private navStack.
* Stop stripping ?source= — the URL stays honest, so source/tag views are
shareable and survive reload.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
thejayman77
dc245ab6ea