Operator can refresh their Discover playlist without waiting for
the next daily cron tick. Two surfaces, both gated on
system_variant === 'discover':
- Detail page header: "Refresh" button next to the cover art / meta.
- Home Playlists row tile kebab: "Refresh Discover" menu item.
Both call POST /api/playlists/system/discover/refresh, show a
confirmation toast, and invalidate the playlist + playlists queries
so the new content lands without a manual page reload.
Extends Playlist.system_variant union with 'discover'. Adds
refreshDiscover() typed client. Tests cover client behaviour
(success + empty-library) plus conditional rendering on both
surfaces.
svelte-check failed with 8 type errors: $app/stores' page.params.id
is typed `string | undefined`, and the page passed `id` raw to
helpers that need `string`. Two changes:
- Switch to `$app/state` (the project canonical for new pages — see
routes/albums/[id]/+page.svelte). page.params.id is a direct
property read, not a store subscription. Fall back to "" so id is
always a string; SvelteKit won't actually render the page without
a populated id, but the type-checker doesn't know that.
- Drop the now-unused `writable` import in the test file and update
the mock to expose the new state-shape (object with .params, not a
writable store).
The remaining a11y warnings (tabindex on role=menu/dialog, click
handlers without keyboard events, draggable div without role,
autofocus) are svelte-check warnings — they don't block the build.
Some are pre-existing in FlagPopover; others are tech debt from
slice 1's drag-and-drop and modal patterns. Address as a follow-up
polish task.
Header shows collage, name, description, public/private chip, track
count, owner attribution (when not owner). Edit + delete buttons
visible to the owner only. Track list uses PlaylistTrackRow with
HTML5 drag-and-drop; drop fires PUT /tracks with the new ordered
positions and TanStack Query invalidates the playlist + index cache.
Toast surface is a placeholder browser alert in slice 1 — a real
toast is a polish task whenever it lands.
bvandeusen