Bug Fix: v2.0.2
Problem: Config flow could not load (500 error), HA reported Setup of sensor platform binance is taking over 10 seconds.
Root cause: All sensor classes blocked HA entity setup by awaiting their full API call + sleep cycle in async_added_to_hass.
Fix: Non-blocking background task for the first update cycle. Setup completes instantly, sensors populate asynchronously.
Full Changelog: v2.0.1...v2.0.2