feat: relate user and member

lib/membership/member.ex

@@ -170,7 +170,7 @@ defmodule Mv.Membership.Member do
 
   relationships do
     has_many :properties, Mv.Membership.Property
-    has_one :user, Mv.Accounts.User
+    has_one :user, Mv.Accounts.User, destination_attribute: :member_id
   end
 
   calculations do

lib/membership/membership.ex

@@ -10,6 +10,7 @@ defmodule Mv.Membership do
     resource Mv.Membership.Member do
       define :create_member, action: :create_member
       define :list_members, action: :read
+      define :get_member!, action: :read, get_by: [:id]
       define :update_member, action: :update_member
       define :destroy_member, action: :destroy
     end