feat(cloud): report planner transport status

packages/cloud-platform/cloud/pool.py

@@ -34,6 +34,7 @@ class HostRegistration:
     host_id: str
     address: str | None
     last_seen_at: datetime
+    planner_transport: Literal["direct", "cloud"] = "direct"
 
 
 @dataclass(frozen=True)
@@ -61,6 +62,7 @@ class DevicePool:
         snapshot: list[Device],
         *,
         address: str | None = None,
+        planner_transport: Literal["direct", "cloud"] = "direct",
         allow_device_takeover: bool = False,
     ) -> None:
         """Push a host's current device snapshot into the pool.
@@ -70,7 +72,12 @@ class DevicePool:
         other hosts are untouched.
         """
         now = utc_now()
-        self.store.upsert_host(host_id, address=address, last_seen_at=now)
+        self.store.upsert_host(
+            host_id,
+            address=address,
+            last_seen_at=now,
+            planner_transport=planner_transport,
+        )
         devices = [self._to_pooled(device, host_id, now) for device in snapshot]
         if allow_device_takeover:
             self.store.replace_host_devices(