P1 Edge: 关节桥接重构 — 直接订阅 /joint_states + 资源跟随 + 吞吐优化

- HostNode 直接订阅 /joint_states (JointStateMsg)，绕过 JointRepublisher 中间人
- 新增 resource_pose 订阅，实现资源夹取跟随 (gripper attach/detach)
- 吞吐优化：死区过滤 (1e-4 rad)、抑频 (~20Hz)、增量 resource_poses
- JointRepublisher 修复 str→json.dumps (E1)
- communication.py 新增 publish_joint_state 抽象方法
- ws_client.py 实现 push_joint_state action 发送
- 57 项测试覆盖：关节分组、资源跟随、同类型多设备、优化行为

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

unilabos/app/communication.py

@@ -50,6 +50,17 @@ class BaseCommunicationClient(ABC):
         """
         pass
 
+    def publish_joint_state(self, node_uuid: str, joint_states: dict, resource_poses: dict = None) -> None:
+        """
+        发布高频关节状态数据（push_joint_state action，不写 DB）
+
+        Args:
+            node_uuid: 设备节点的云端 UUID
+            joint_states: 关节名 → 角度/位置 的映射
+            resource_poses: 物料附着映射（可选）
+        """
+        pass
+
     @abstractmethod
     def publish_job_status(
         self, feedback_data: dict, job_id: str, status: str, return_info: Optional[dict] = None

unilabos/app/ws_client.py

@@ -1434,6 +1434,21 @@ class WebSocketClient(BaseCommunicationClient):
         self.message_processor.send_message(message)
         # logger.trace(f"[WebSocketClient] Device status published: {device_id}.{property_name}")
 
+    def publish_joint_state(self, node_uuid: str, joint_states: dict, resource_poses: dict = None) -> None:
+        """发布高频关节状态（push_joint_state，不写 DB）"""
+        if self.is_disabled or not self.is_connected():
+            return
+
+        message = {
+            "action": "push_joint_state",
+            "data": {
+                "node_uuid": node_uuid,
+                "joint_states": joint_states or {},
+                "resource_poses": resource_poses or {},
+            },
+        }
+        self.message_processor.send_message(message)
+
     def publish_job_status(
         self, feedback_data: dict, item: QueueItem, status: str, return_info: Optional[dict] = None
     ) -> None: