v4.4.0 — 🔋 Battery Time Remaining (time to full / empty)

🔋 NEW: Battery Time Remaining — see at a glance when your battery is full or empty!

PV Energy Management Spot now estimates the remaining time of your battery. A new "Time Remaining" sensor on your Battery device shows:

• ⏳ Discharging → time until empty
• ⚡ Charging → time until full
• 💤 Idle → "—"

It uses your full/empty SoC thresholds (soc_high / soc_low) as the bounds — so it matches exactly how you defined "full" and "empty".

Built honest, not jumpy

• Uses your real battery power for an accurate estimate (config: Battery Power Sensor).
• No battery power sensor? It can derive the value from PV − house − grid (just point it at your grid power sensor).
• Smoothed (moving average) so the time doesn't flicker every second.
• Clean behaviour at idle / near-full / near-empty (no division-by-zero).

Plus attributes: voraussichtlich_um (the clock time it will be full/empty), leistung_w, modus, dauer, quelle.

How to enable

Settings → Devices & Services → PV Energy Management Spot → Configure → Sensors, then set Battery Power Sensor (W) + Battery Capacity (kWh) (and your SoC sensor, if not already). 🚀