v1.8.9: Z2M Geräte-Dropdown für Überschuss-Steuerung

- MQTT Subscribe auf zigbee2mqtt/bridge/devices beim Connect
- Neuer Endpoint GET /api/z2m-devices liefert Friendly Names + Beschreibung
- Eingabefeld für Z2M Name als Datalist-Combo (tippen oder aus Liste wählen)

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

haos-addon/src/main.py

@@ -76,6 +76,7 @@ class State:
     inv_data: Dict[str, Dict[str, Any]] = {}
     surplus_devices_cfg: List[Dict[str, Any]] = []
     z2m_base: str = "zigbee2mqtt"
+    z2m_devices: List[Dict[str, Any]] = []
 
 _publisher: Optional[MqttPublisher] = None
 _surplus_ctrl: Optional[SurplusDeviceController] = None
@@ -370,6 +371,28 @@ def _restart_all():
     _surplus_ctrl.set_config(devices, z2m_base)
     _start_surplus_loop()
 
+    def _on_z2m_devices(topic, payload):
+        try:
+            devices_raw = json.loads(payload)
+            if not isinstance(devices_raw, list):
+                return
+            parsed = [
+                {
+                    "friendly_name": d.get("friendly_name", ""),
+                    "description":   (d.get("definition") or {}).get("description", ""),
+                    "type":          d.get("type", ""),
+                }
+                for d in devices_raw
+                if d.get("friendly_name") and d.get("friendly_name") != "Coordinator"
+            ]
+            with State.lock:
+                State.z2m_devices = parsed
+            log.info("Z2M: %d Geräte empfangen", len(parsed))
+        except Exception as e:
+            log.warning("Z2M bridge/devices Fehler: %s", e)
+
+    _publisher.subscribe(f"{z2m_base}/bridge/devices", _on_z2m_devices)
+
     for inv_cfg in State.inverters_cfg:
         _start_inverter(inv_cfg)
 
@@ -488,6 +511,11 @@ def api_period_energy():
 
     return jsonify(result)
 
+@app.get("/api/z2m-devices")
+def api_z2m_devices():
+    with State.lock:
+        return jsonify(State.z2m_devices)
+
 @app.get("/api/surplus-devices")
 def api_get_surplus_devices():
     with State.lock: