v3.4.0-beta.12

Quick Charge remaining time uses the dedicated countdown register (#251, LXP-LB testing by @ivanfmartinez).

• In LOCAL/HYBRID, the remaining time now prefers input register 210 (the seconds-resolution countdown on newer firmware, ≈v25+) and falls back to holding register 234 (minutes) when it isn't available. CLOUD reads remaining from the API.
• The Quick Charge Duration number now reflects the live remaining time while a charge is running (instead of a stored preset), so it agrees with the Quick Charge Remaining sensor instead of disagreeing until a refresh; when idle it shows the stored preference (default 60) applied on the next start.
• The Quick Charge Duration number (holding reg 234, writable minutes) and the Quick Charge Remaining sensor (input reg 210, read-only seconds) are intentionally kept as two separate entities — one per hardware register — rather than collapsed into one.

Requires pylxpweb 0.9.36b11 (installed automatically via HACS).