- AppCommandPalette had no test: modules gated by the account, hidden channels left out, the
playlist row selecting before it navigates, and the surprise riding setPage's `then`.
- keymap: an Alt/AltGr-modified key (Ctrl+Alt on Windows, a constant on the HU layout) fires no
bare-key or Mod row.
- Banner: the dismiss button falls back to "Close" rather than going unnamed.
- ShareDialog: a protected link's lit lock and Revoke's danger colour stay on the icon.
- Both playlist headers are rendered now: the YouTube one needed the toolbar slot it portals into.
Meta line sums known runtimes and treats an ABSENT duration as nothing (null never exercised the
guard: `3000 + null` is 3000); a one-row list offers no view controls.