fix(node): QuicChunkClient local_port + QuicChunkServer dual-stack

local_port=0 param on QuicChunkClient — specify for Port-Restricted Cone NAT
hole punching (client must send from the same port the node probed to).
QuicChunkServer default host '::' for IPv4+IPv6 dual-stack on Linux.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

1 files changed, 10 insertions, 7 deletions

diff --git a/packages/meshbay-node/src/meshbay_node/transport/quic_client.py b/packages/meshbay-node/src/meshbay_node/transport/quic_client.py
index 6041fef..a2220ff 100644
--- a/packages/meshbay-node/src/meshbay_node/transport/quic_client.py
+++ b/packages/meshbay-node/src/meshbay_node/transport/quic_client.py
@@ -100,16 +100,18 @@ class QuicChunkClient:
         jwt_token: str,
         gek: bytes,
         pk_node_b64: str,
+        local_port: int = 0,   # 0 = OS choisit; spécifier pour hole punching Port-Restricted
     ):
-        self._host      = host
-        self._port      = port
-        self._jwt_token = jwt_token
-        self._gek       = gek
-        self._pk_node   = Ed25519PublicKey.from_public_bytes(
+        self._host       = host
+        self._port       = port
+        self._jwt_token  = jwt_token
+        self._gek        = gek
+        self._local_port = local_port
+        self._pk_node    = Ed25519PublicKey.from_public_bytes(
             base64.b64decode(pk_node_b64))
         self._proto: _MNPClientProtocol | None = None
-        self._cm        = None
-        self._ctrl_stream = 0   # stream 0 = control/handshake
+        self._cm         = None
+        self._ctrl_stream = 0
 
     async def __aenter__(self):
         await self.connect()
@@ -129,6 +131,7 @@ class QuicChunkClient:
             self._host, self._port,
             configuration=config,
             create_protocol=_MNPClientProtocol,
+            local_port=self._local_port,  # 0 = aléatoire; local_port=X pour hole punching
         )
         self._proto = await self._cm.__aenter__()