The picker used to render every source whether or not the user had
credentials for it. Clicking Discogs with no token, Hydrabase with no
URL, or Spotify with nothing saved would fire a doomed fetch — at best
a silent empty state, at worst a confusing fallback to another source.
Now the picker reads /api/settings/config-status (the same endpoint the
Settings → Connections page already uses for the green/yellow status
dot) on init and dims icons whose service isn't set up. Clicking a
dimmed icon navigates to Settings → Connections and scrolls to the
relevant service card with a brief accent-coloured pulse to orient
the user.
Sources the backend's SERVICE_CONFIG_REGISTRY doesn't cover
(musicbrainz, youtube_videos, soulseek) are permanently treated as
configured — they need no user credentials, so dimming them would
mislead.
Extra guard: if the user's configured primary metadata source is
itself unconfigured (Spotify saved as primary but no client_id yet),
`_initDefaultSource` falls forward to the first configured source so
the default active icon is never a "set up" chip.
Shared helpers:
- fetchSourceConfiguredMap() centralizes the config-status lookup for
both surfaces. Falls back permissively if the endpoint fails so the
picker never stops working over a network hiccup.
- openSettingsForSource(src) navigates to Settings → Connections and
scrolls to `[data-service=src]`, pulsing a 2.2s accent flash
(.stg-service-flash) so the user doesn't lose their place.
CSS:
- .unconfigured: 42% opacity, 0.7 grayscale filter, subdued hover
state with no transform/glow (feels "look but don't touch"),
defensive override to kill brand glow if somehow active.
- @keyframes stg-service-flash-anim for the scroll-to highlight.