v2.0.2 — fix stuck-open valve state

What's Changed

Bug Fixes

• Valves no longer stay stuck in the "open" state after the device's on-board timer auto-closes them. The integration now mirrors the commanded duration on the wall clock: seconds_remaining decrements live each coordinator tick, and the entity flips to closed at expected_off_at + 10s grace. Zero new BLE traffic — no battery cost on the valve.

Maintenance

• Bump manifest.json version to match the release tag.

Full Changelog: v2.0.1...v2.0.2