Add detectPoint to call entity.

common.graphqls

@@ -90,4 +90,10 @@ enum Scope {
     SERVICE_RELATION
     SERVICE_INSTANCE_RELATION
     ENDPOINT_RELATION
-}
+}
\ No newline at end of file
+
+enum CallDetectPoint {
+    CLIENT
+    SERVER
+    PROXY
+}

topology.graphqls

@@ -44,6 +44,7 @@ type Call {
     # The protocol and tech stack used in this distributed call
     callType: String!
     id: ID!
+    detectPoint: DetectPoint!
 }
 
 enum NodeType {