完善建模交互、组件图标与系统协议

app/simulation/core/base.py

@@ -44,6 +44,16 @@ class Component(ABC):
             if port.definition is not None
         )
 
+    @property
+    def required_connection_ports(self) -> tuple[str, ...]:
+        """Physical ports that must have an external connection before simulation."""
+
+        return tuple(
+            definition.name
+            for definition in self.port_definitions
+            if definition.kind == "physical"
+        )
+
     def register_port(self, port: PortState) -> PortState:
         definition = port.definition
         if definition is None: