Glance ActionCallback wires to WidgetActionProcessor: premium marks pending +
calls API + refreshes; free tier opens paywall deep link instead. Idempotent,
rollback-safe on API failure.
Also fixes a one-line compile error in WidgetTaskActionReceiver.kt where
updateAllWidgets() had been removed by Stream L — swapped for forceRefresh()
so the build stays green. The legacy receiver is now redundant (replaced by
CompleteTaskAction) but deletion is deferred to a Stream K follow-up so the
AndroidManifest entry can be removed in the same commit.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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