fix(espnow): handle binary and JSON RX in simplified main

Use init_espnow for channel alignment; route wire CMD/GROUPS and JSON
v1 payloads to process_data from the poll loop.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/main.py

@@ -3,14 +3,13 @@ from settings import Settings
 import machine
 import asyncio
 import gc
+import json
 import network
 import espnow
 from presets import Presets
-from controller_messages import apply_startup_pattern
-from background_tasks import presets_loop
-from espnow_transport import espnow_receive_loop, init_espnow, send_boot_announce
-from mem_stats import print_mem
-import json
+from controller_messages import apply_startup_pattern, process_data
+from espnow_transport import _handle_packet, init_espnow
+from espnow_wire import BROADCAST_MAC, WIRE_MAGIC
 
 wdt = machine.WDT(timeout=10000)
 wdt.feed()
@@ -28,22 +27,29 @@ gc.collect()
 
 apply_startup_pattern(settings, presets)
 
-sta_if = network.WLAN(network.STA_IF)
-sta_if.active(True)
-print(sta_if.ifconfig())
-print(sta_if.config("channel"))
-
-esp = espnow.ESPNow()
-esp.active(True)
-esp.add_peer(b"\xff\xff\xff\xff\xff\xff")
+esp = init_espnow(settings)
+print(network.WLAN(network.STA_IF).config("channel"))
 
 hello = json.dumps({
     "v": "1",
-    "settings": settings,
+    "name": settings.get("name", "led"),
     "type": "led",
 })
-esp.send(b"\xff\xff\xff\xff\xff\xff", hello)
-print(hello)
+try:
+    esp.send(BROADCAST_MAC, hello)
+    print("espnow hello", len(hello), "B")
+except Exception as e:
+    print("espnow hello failed:", e)
+
+
+def _on_espnow_message(msg):
+    if not msg:
+        return
+    if msg[0] == WIRE_MAGIC:
+        _handle_packet(msg, settings, presets)
+        return
+    if msg[0:1] == b"{":
+        process_data(msg, settings, presets)
 
 
 async def main():
@@ -52,8 +58,14 @@ async def main():
         wdt.feed()
         if esp.any():
             host, msg = esp.recv(0)
-            print(host, msg)
+            if host and msg:
+                print(host, len(msg), "B")
+                try:
+                    _on_espnow_message(msg)
+                except Exception as e:
+                    print("espnow rx error:", e)
         await asyncio.sleep(0)
-        
+
+
 if __name__ == "__main__":
     asyncio.run(main())