[优化]大改动，指令下发采用规则链rpc请求

pkg/rule_engine/instance.go

@@ -43,7 +43,7 @@ func newInstanceWithManifest(m *manifest.Manifest) (*ruleChainInstance, []error)
 // StartRuleChain TODO 是否需要添加context
 func (c *ruleChainInstance) StartRuleChain(context context.Context, message *message.Message) error {
 	if node, found := c.nodes[c.firstRuleNodeId]; found {
-		node.Handle(message)
+		return node.Handle(message)
 	}
 	return nil
 }