Adds a Selection Marker toggle under Settings → Preferences that
controls the ❯ cursor glyph on the focused row of every list.
Default off; rows keep a leading space for alignment either way.
Every list pane (tab strip, feed, my shows, discover, search,
settings, whitelist editor) reads the glyph through the shared
useSelectionMarker hook.
Also aligns the lead column across panes: page list rows drop
their extra box paddingLeft so labels start at the same column
as the tab strip (2 cells without nerd icons, 4 with), keeping
episode sub-rows aligned to the title.
The cover was previously only wired through the UI hook; --play skipped it.
Also: Bun's fetch hangs in compiled binaries (Bun 1.3.8) — every cover
download silently failed in shipped builds, timing out against any host.
Cover staging now shells out to curl (present on macOS/Linux, 8s bound),
shared via src/utils/cover-art.ts so the UI and CLI paths stage the same
temp file and pass it to mpv as --cover-art-files (albumart track).
- mpv: --force-media-title '<podcast> — <episode>' so macOS Now Playing shows
the podcast name instead of the download-hash filename (mediaTitle PlayOption)
- media registry: artist is now the human podcast title (customName ||
podcast.title), falling back to podcastId
- downloads: write the podcast cover as a <base>.jpg sibling so mpv's
cover-art-auto=exact picks it up for artwork; delete it with the download
