Add NFC enable/disable support; update devices, Sonoff, and Tuya

app/models/sonoff_device.py

@@ -109,17 +109,18 @@ class SonoffDevice(db.Model):
 
     def get_channel_state(self, channel: int = 0) -> bool:
         """Return True if channel is ON.
-        For single-channel devices uses 'switch' param.
-        For multi-channel uses 'switches' array with outlet index.
+        Detects format from stored params: if 'switches' key is present (or
+        num_channels > 1) uses the switches-array format; otherwise uses 'switch'.
         """
         p = self.params
-        if self.num_channels == 1:
-            return p.get("switch") == "on"
-        switches = p.get("switches", [])
-        for s in switches:
-            if s.get("outlet") == channel:
-                return s.get("switch") == "on"
-        return False
+        uses_switches_fmt = self.num_channels > 1 or "switches" in p
+        if uses_switches_fmt:
+            switches = p.get("switches", [])
+            for s in switches:
+                if s.get("outlet") == channel:
+                    return s.get("switch") == "on"
+            return False
+        return p.get("switch") == "on"
 
     def all_channel_states(self) -> list[dict]:
         """Return [{channel, label, state}, ...] for every channel."""