test: cover xarm room manipulation flow - #3761

What T-Rex did

• Submitted a proof for the posted P1 finding and linked it to the reviewer comment.
• Validated the harness output by confirming the balanced point cloud was accepted at the collision origin.
• Validated that a partial asymmetric point cloud was rejected despite sharing the collision origin.
• For general contract validation, confirmed the complete observation at center [0.0, 0.0, 0.1] with zero origin error was accepted.
• For the same validation, confirmed the partial observation at center [0.04, 0.0, 0.1] had x-axis error 0.040 m and was rejected by the PR assertion (>0.020 m).

_{Ran code and verified through T-Rex}

1. General comment

   Point-cloud centroid is incorrectly required to equal collision geometry origin

   • Bug
     • _detected_objects reads the observed point-cloud centroid, while _scene_truth supplies a collision proxy origin. A partially visible asymmetric object can be correctly registered at the same origin yet have an observed centroid farther than the 2 cm threshold; the executed 8 cm-wide partial sample was rejected at 4 cm x error.
   • Cause
     • PointCloud2.center is the arithmetic mean of only observed points, not an object-pose or collision-geometry-origin estimate.
   • Fix
     • In dimos/e2e_tests/test_xarm_room_sim.py:162-200, do not compare pointcloud.center to collision geometry origins. Validate registration with an origin/pose estimate designed for that semantic, or compare geometry/point-cloud overlap with a visibility-aware tolerance.

   _{Ran code and verified through T-Rex}

dimos.web.relay_bridge.test_relay_e2e::test_reset_burst_does_not_wedge_robot_leg

Stack Traces | 5.24s run time

robot = <dimos.web.relay_bridge.wt_client.RelayClient object at 0x7f1426d2aff0>
viewer = <dimos.web.relay_bridge.wt_client.RelayClient object at 0x7f1426d56480>

    async def test_reset_burst_does_not_wedge_robot_leg(
        robot: RelayClient, viewer: RelayClient
    ) -> None:
        """Resets racing stream acceptance must not kill the relay's robot data path.
    
        A stream reset before the relay has read its WebTransport preamble errors
        Deno's wt.incomingBidirectionalStreams permanently (rejected pull), which
        used to silently end the robot stream loop. Bursting resets in the same
        event-loop turn as the sends makes that race near-certain.
        """
        await attach(robot, viewer, ["cam"])
        for rnd in range(5):
            # The accept glue cannot have read all 50 preambles before the
            # resets land, so some streams are reset pre-acceptance.
            ids = [robot.send_frame("cam", b"\xcd" * (16 * 1024), delivery="latest") for _ in range(50)]
            for stream_id in ids:
                robot._session.reset_if_in_flight(stream_id)
            marker = f"alive-{rnd}".encode()
            robot.send_frame("cam", marker, delivery="latest")
    
            frames = await collect_until(
                viewer,
                lambda fs, marker=marker: any(bytes(f.payload) == marker for f in fs),
                timeout=5.0,
            )
>           assert any(bytes(f.payload) == marker for f in frames), (
                f"robot data path wedged in round {rnd}"
            )
E           AssertionError: robot data path wedged in round 2
E           assert False
E            +  where False = any(<generator object test_reset_burst_does_not_wedge_robot_leg.<locals>.<genexpr> at 0x7f1426d61b60>)

frames     = [DataFrame(header=FrameHeader(ch='cam', seq=102, ts=1788054290.7532084, delivery='latest', meta=None), payload=b'\xcd\...\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd')]
ids        = [412, 416, 420, 424, 428, 432, ...]
marker     = b'alive-2'
rnd        = 2
robot      = <dimos.web.relay_bridge.wt_client.RelayClient object at 0x7f1426d2aff0>
stream_id  = 608
viewer     = <dimos.web.relay_bridge.wt_client.RelayClient object at 0x7f1426d56480>

.../web/relay_bridge/test_relay_e2e.py:255: AssertionError