Add test utilities and scripts

- Add test directory with main.py, p2p.py, ws.py
- Add send_empty_json.py WebSocket test script

send_empty_json.py

@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+import socket
+import struct
+import base64
+import hashlib
+
+# Connect to the WebSocket
+s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+s.connect(('192.168.4.1', 80))
+
+# Send HTTP WebSocket upgrade request
+key = base64.b64encode(b'test-nonce').decode('utf-8')
+request = f'''GET /ws HTTP/1.1\r
+Host: 192.168.4.1\r
+Upgrade: websocket\r
+Connection: Upgrade\r
+Sec-WebSocket-Key: {key}\r
+Sec-WebSocket-Version: 13\r
+\r
+'''
+s.send(request.encode())
+
+# Read upgrade response
+response = s.recv(4096)
+print(response.decode())
+
+# Send WebSocket TEXT frame with empty JSON '{}'
+payload = b'{}'
+mask = b'\x12\x34\x56\x78'
+payload_masked = bytes(p ^ mask[i % 4] for i, p in enumerate(payload))
+
+frame = struct.pack('BB', 0x81, 0x80 | len(payload))
+frame += mask
+frame += payload_masked
+
+s.send(frame)
+print("Sent empty JSON to WebSocket")
+s.close()
+
+
+
+
+
+