Test for inbound UDP traffic

Basic tutorial shows inbound traffic test

https://github.com/ruvnet/RuView/blob/be4efecbcd9a8f357df07dcc654f363fc774f8fb/docs/tutorials/cognitum-seed-pretraining.md?plain=1#L260

PS D:\Dev\Projects\RuView> python -c "
>> import socket, struct
>> sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
>> sock.bind(('0.0.0.0', 5006))
>> sock.settimeout(10)
>> print('Listening on UDP 5006 for 10 seconds...')
>> count = 0
>> try:
>>     while True:
>>         data, addr = sock.recvfrom(2048)
>>         magic = struct.unpack_from('<I', data)[0]
>>         names = {0xC5110001: 'CSI_RAW', 0xC5110002: 'VITALS', 0xC5110003: 'FEATURES'}
>>         name = names.get(magic, f'UNKNOWN(0x{magic:08X})')
>>         count += 1
>>         if count <= 5:
>>             print(f'  Packet {count}: {name} from {addr[0]} ({len(data)} bytes)')
>> except socket.timeout:
>>     pass
>> sock.close()
>> print(f'Received {count} packets total')
>> "
Listening on UDP 5006 for 10 seconds...
Received 0 packets total

Receiving nothing

1. Is a firewall in the way? Accept Inbound frames from CSI through Firewall
2. Are the ESP32s sending anything? CHECK

Per troubleshooting

https://github.com/ruvnet/RuView/blob/be4efecbcd9a8f357df07dcc654f363fc774f8fb/archive/v1/docs/troubleshooting.md#network-configuration-issues