Polling was never wired up.

[ringo-redbit]

There is no proactive token refresh. The SDK was designed to poll (the function exists, clearInstance clears the timeout, clearTimeout runs when tracking is disabled) - but the polling was never wired up. Tokens are only pushed to native at two moments:

1. initialize() -> fetchAndSetToken()
2. setLocationTrackingEnabled(true) -> fetchAndSetToken()

After that, the native factory just stores and returns the last token. Stale until JS pushes a new one.