feat(api): tcp driver registry, identify, preset push delivery

- Track Wi-Fi TCP clients, liveness pings, disconnect broadcast, bind errors via gather\n- Device list/get include connected; POST identify with __identify preset\n- Presets push/send delivery helpers; bump led-driver hello type

Made-with: Cursor

src/models/device.py

@@ -233,10 +233,10 @@ class Device(Model):
     def list(self):
         return list(self.keys())
 
-    def upsert_wifi_tcp_client(self, device_name, peer_ip, mac):
+    def upsert_wifi_tcp_client(self, device_name, peer_ip, mac, device_type=None):
         """
-        Register or update a Wi-Fi client by **MAC** (storage id). Updates **name**
-        and **address** (peer IP) on each connect.
+        Register or update a Wi-Fi client by **MAC** (storage id). Updates **name**,
+        **address** (peer IP), and optionally **type** from the client hello when valid.
         """
         mac_hex = normalize_mac(mac)
         if not mac_hex:
@@ -247,10 +247,19 @@ class Device(Model):
         ip = normalize_address_for_transport(peer_ip, "wifi")
         if not ip:
             return None
+        resolved_type = None
+        if device_type is not None:
+            try:
+                resolved_type = validate_device_type(device_type)
+            except ValueError:
+                resolved_type = None
         if mac_hex in self:
             merged = dict(self[mac_hex])
             merged["name"] = name
-            merged["type"] = validate_device_type(merged.get("type"))
+            if resolved_type is not None:
+                merged["type"] = resolved_type
+            else:
+                merged["type"] = validate_device_type(merged.get("type"))
             merged["transport"] = "wifi"
             merged["address"] = ip
             merged["id"] = mac_hex
@@ -260,7 +269,7 @@ class Device(Model):
         self[mac_hex] = {
             "id": mac_hex,
             "name": name,
-            "type": "led",
+            "type": resolved_type or "led",
             "transport": "wifi",
             "address": ip,
             "default_pattern": None,