Variable OFFLINE_GRACE_PLATFORMSConst

OFFLINE_GRACE_PLATFORMS: readonly ["kick", "twitch", "rumble", "tiktok", "twitter"] = ...

The platforms whose streamer objects carry offlineGracePeriod. Render the control only for these.

Import this rather than hard-coding the list. It was prose in a handoff ("kick, twitch, rumble and tiktok") and went stale the moment X was added server-side, which is the same failure that let getPlatformLabel ship without twitter or club. A list the dashboard maintains by hand is a list that drifts.

YouTube, Whatnot and Club are absent permanently, not pending: YouTube pushes no stream-ended event at all, and Club has no live/offline pair. Neither can ever hold an offline, so the field does not exist on their models.