no opcua installation on macos

fix possible crash

fix deck & host_node

set liquid with tube

add test_resource_schema

fix test resource schema

registry update & workflow update

add test mode

support description & tags upload

fix config load

fix log

add registry name & add always free

correct config organic synthesis

Adapt to new scheduler, sampels, and edge upload format (#230)

* add sample_material

* adapt to new samples sys

* fix pump transfer. fix resource update when protocol & ros callback

* Adapt to new scheduler.

Feat/samples (#229)

* add sample_material

* adapt to new samples sys

adapt to new samples sys

adapt to new edge format

workflow upload & prcxi transfer liquid

lh liquid

speed up registry load

workflow upload & set liquid fix & add set liquid with plate

fix upload workflow json

unilabos/utils/decorator.py

@@ -184,6 +184,51 @@ def get_all_subscriptions(instance) -> list:
     return subscriptions
 
 
+def always_free(func: F) -> F:
+    """
+    标记动作为永久闲置(不受busy队列限制)的装饰器
+
+    被此装饰器标记的 action 方法，在执行时不会受到设备级别的排队限制，
+    任何时候请求都可以立即执行。适用于查询类、状态读取类等轻量级操作。
+
+    Example:
+        class MyDriver:
+            @always_free
+            def query_status(self, param: str):
+                # 这个动作可以随时执行，不需要排队
+                return self._status
+
+            def transfer(self, volume: float):
+                # 这个动作会按正常排队逻辑执行
+                pass
+
+    Note:
+        - 可以与其他装饰器组合使用，@always_free 应放在最外层
+        - 仅影响 WebSocket 调度层的 busy/free 判断，不影响 ROS2 层
+    """
+
+    @wraps(func)
+    def wrapper(*args, **kwargs):
+        return func(*args, **kwargs)
+
+    wrapper._is_always_free = True  # type: ignore[attr-defined]
+
+    return wrapper  # type: ignore[return-value]
+
+
+def is_always_free(func) -> bool:
+    """
+    检查函数是否被标记为永久闲置
+
+    Args:
+        func: 被检查的函数
+
+    Returns:
+        如果函数被 @always_free 装饰则返回 True，否则返回 False
+    """
+    return getattr(func, "_is_always_free", False)
+
+
 def not_action(func: F) -> F:
     """
     标记方法为非动作的装饰器