Deep-review round 3 of bug hunt 2026-09 (the round-2 overlay toast host, finished).
- Inside an overlay the toast stack sits above the bottom band (bottom-24, the UpNextCard rung) and
lets clicks between cards through: at the app's own spot it covered the Plex transport row and
PlayerModal's docked bar and took their clicks while a toast was up (measured: play/pause, ±10,
stop, prev/next, mute all hit the toast).
- ui/Modal and the onboarding wizard mount an overlay host too, so a toast raised under any dialog
is readable and a click on it no longer closes the dialog; the Modal's Tab trap spans the whole
dialog, so a toast's action and dismiss are keyboard-reachable. A test now enforces the
convention: a component that covers the viewport at z-overlay must mount <Toaster overlay />.
- PlayerModal's host moves into the stage in true fullscreen (outside the element holding the lock it
was painted under it).
- A host that takes over shows the toasts it inherits silently (no second role=alert, its region
aria-live=off until they are in), and each countdown bar starts as far in as its toast already is
instead of restarting while the real dismiss timer does not.
- The overlay-host registry uses lib/store instead of a hand-rolled listener triad.