v1.2.901

🎚️ Cover inline slider now shows a live position label

The inline slider for cover entities now displays a readable position value,
matching the existing behaviour of the light (brightness) and climate
(temperature) sliders.

What's new

• Resting state: With control_mode: slider and show_state: true, cover
  tiles now show a position value (e.g. 16% closed) instead of the raw Home
  Assistant state (open / opening / closed).
• Live drag: The label updates in real time while you drag the slider,
  instead of only refreshing after release.

Notes

• Position is shown as % closed, derived from current_position.
• Falls back to the raw state when current_position is not yet reported
  (e.g. right after a Zigbee2MQTT restart).
• No new config options, no editor or schema changes.

Thanks to @cristi001 for the contribution! (#87)