Feature: EMS-Konfiguration im Web-UI (v1.5.1)

- Modal zeigt EMS-Felder nur bei KATHREIN_WALLBOX (toggleEmsSection)
- openModal lädt ems_min_pv/timeout/target_hour/phases aus Gerätekonfig
- saveInverter speichert EMS-Parameter in inverters.json
- main.py übergibt EMS-Konfig aus inv_cfg an EmsController()

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

haos-addon/src/main.py

@@ -188,7 +188,12 @@ def _poll_loop(inv_cfg: Dict[str, Any], stop: threading.Event):
                  inv_id, inverter.name, host, interval)
     elif inverter.protocol == "kathrein":
         reader = WallboxReader(host=host, port=port)
-        ems = EmsController()
+        ems = EmsController(
+            min_pv_power=inv_cfg.get("ems_min_pv", 1400),
+            pv_timeout_h=inv_cfg.get("ems_timeout", 4.0),
+            target_hour=inv_cfg.get("ems_target_hour", 6),
+            phases=inv_cfg.get("ems_phases", 3),
+        )
         log.info("[%s] Poll-Loop: %s @ %s:%s (Kathrein EMS) alle %ds",
                  inv_id, inverter.name, host, port, interval)
     else: