Name AF_UNIX sockets by node id for self-describing debuggability

Use the node id (UUID) instead of an incrementing counter for the unix
control socket name, so each socket identifies its owning node at a glance
(one ubridge per node => node_id is unique). Falls back to the counter only
when no node id is supplied. A single UUID fits sun_path's 107-byte cap
(~69 bytes), so no project_id is needed.

gns3server/compute/base_node.py

@@ -929,7 +929,7 @@ class BaseNode:
         transport = self._manager.config.settings.Server.ubridge_control_transport
         if not self.ubridge:
             self._ubridge_hypervisor = Hypervisor(
-                self._project, self.ubridge_path, self.working_dir, transport, server_host
+                self._project, self.ubridge_path, self.working_dir, transport, server_host, self.id
             )
         log.info(f"Starting new uBridge hypervisor at {self._ubridge_hypervisor.endpoint}")
         await self._ubridge_hypervisor.start()