Refresh gateway runtime source import

scripts/test_gateway_relay_crypto.py

@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+"""Smoke-test gateway relay AES-GCM without requiring Node.js."""
+
+import importlib.util
+import pathlib
+import sys
+
+
+def load_module():
+    script_path = pathlib.Path(__file__).resolve().parents[1] / "resources" / "scripts" / "napseer_mcp_server.py"
+    sys.path.insert(0, str(script_path.parent))
+    spec = importlib.util.spec_from_file_location("napseer_mcp_server", script_path)
+    module = importlib.util.module_from_spec(spec)
+    assert spec and spec.loader
+    spec.loader.exec_module(module)
+    return module
+
+
+def run():
+    mod = load_module()
+    zero_key = bytes.fromhex("00" * 32)
+    zero_nonce = bytes.fromhex("00" * 12)
+
+    packed = mod.aes_gcm_encrypt(zero_key, zero_nonce, b"", b"")
+    assert packed.hex() == "530f8afbc74536b9a963b4f1c4cb738b"
+    assert mod.aes_gcm_decrypt(zero_key, zero_nonce, b"", packed) == b""
+
+    packed = mod.aes_gcm_encrypt(zero_key, zero_nonce, b"", bytes(16))
+    assert packed.hex() == "cea7403d4d606b6e074ec5d3baf39d18d0d1c8a799996bf0265b98b5d48ab919"
+    assert mod.aes_gcm_decrypt(zero_key, zero_nonce, b"", packed) == bytes(16)
+
+    key = bytes.fromhex("feffe9928665731c6d6a8f9467308308feffe9928665731c6d6a8f9467308308")
+    nonce = bytes.fromhex("cafebabefacedbaddecaf888")
+    aad = bytes.fromhex("feedfacedeadbeeffeedfacedeadbeefabaddad2")
+    plaintext = bytes.fromhex("d9313225f88406e5a55909c5aff5269a")
+    packed = mod.aes_gcm_encrypt(key, nonce, aad, plaintext)
+    assert packed[:16].hex() == "522dc1f099567d07f47f37a32a84427d"
+    assert mod.aes_gcm_decrypt(key, nonce, aad, packed) == plaintext
+
+    print("ok: gateway relay crypto smoke passed")
+
+
+if __name__ == "__main__":
+    run()