v4.1.0 — PV Surplus Sensors + Log-Flood Fix

New Feature: PV Surplus Sensors

• 3 binary sensors pv_management_pv_ueberschuss_{low,medium,high} with auto-derived thresholds (5/15/30 % of PV peak power)
• Hysteresis 50 %, ON-delay 5 min, OFF-delay 10 min (anti-flicker)
• New numeric sensor pv_management_pv_ueberschuss (W, live)
• New optional config field house_power_entity (W) for surplus = PV power minus house power

For PV-aware consumers (heat pump cooling, washing machine, dishwasher, EV wallbox).

Bug Fix

• Removed _quota_day_start_meter references in sensor.py (AttributeError flooded logs, broke extra_restore_state_data)
• Closes #12, #13, very likely also #9

Upgrade

After HACS update: restart HA, then in the options under "Configure sensors" point the new field House power (W) at your power consumption sensor (W).