feat: add system analytics contracts

auth/v1/internal_srv.proto

@@ -6,6 +6,7 @@ import "auth/v1/msg.proto";
 import "base/v1/msg.proto";
 
 service InternalAuthorizationService {
+  rpc GetUserAnalytics(base.v1.Empty) returns (UserAnalytics);
   rpc InternalAuthorizationSrvHealth(base.v1.Empty) returns (base.v1.StatusRes);
   rpc LookUpName(LookUpNameReq) returns (LookUpNameRes) {}
   // This meant to only be used in a worker process
@@ -21,3 +22,8 @@ service InternalAuthorizationService {
   rpc AssignRoleToUser(AssignRoleToUserReq) returns (InternalIAM) {}
   rpc AssignPermissionToUser(AssignPermissionToUserReq) returns (InternalIAM) {}
 }
+
+message UserAnalytics {
+  int64 user_count = 1;
+  map<string, int64> user_count_by_kyc_level = 2;
+}