Add ESPNow preset send backend support

Implement ESPNow helper model, WebSocket forwarding, and /presets/send endpoint that chunks and broadcasts presets to devices.

src/main.py

@@ -1,10 +1,11 @@
 import asyncio
-from settings import Settings
 import gc
+import json
 import machine
 from microdot import Microdot, send_file
 from microdot.websocket import with_websocket
 from microdot.session import Session
+from settings import Settings
 
 import aioespnow
 import network
@@ -17,6 +18,7 @@ import controllers.palette as palette
 import controllers.scene as scene
 import controllers.pattern as pattern
 import controllers.settings as settings_controller
+from models.espnow import ESPNow
 
 
 async def main(port=80):
@@ -25,10 +27,8 @@ async def main(port=80):
 
     network.WLAN(network.STA_IF).active(True)
 
-
-    e = aioespnow.AIOESPNow()
-    e.active(True)
-    e.add_peer(b"\xbb\xbb\xbb\xbb\xbb\xbb")
+    # Initialize ESPNow singleton (config + peers)
+    esp = ESPNow()
 
     app = Microdot()
     
@@ -85,9 +85,17 @@ async def main(port=80):
     async def ws(request, ws):
         while True:
             data = await ws.receive()
+            print(data)
             if data:
-                await e.asend(b"\xbb\xbb\xbb\xbb\xbb\xbb", data)
-                print(data)
+                # Debug: log incoming WebSocket data
+                try:
+                    parsed = json.loads(data)
+                    print("WS received JSON:", parsed)
+                except Exception:
+                    print("WS received raw:", data)
+
+                # Forward raw JSON payload over ESPNow to configured peers
+                await esp.send(data)
             else:
                 break