Prepare entropy code for the new auto postpone approach

test/controllers/collections_controller_test.rb

@@ -31,8 +31,7 @@ class CollectionsControllerTest < ActionDispatch::IntegrationTest
       collection: {
         name: "Writebook bugs",
         all_access: false,
-        auto_close_period: 1.day,
-        auto_reconsider_period: 2.days
+        auto_postpone_period: 1.day
       },
       user_ids: users(:kevin, :jz).pluck(:id)
     }
@@ -40,8 +39,7 @@ class CollectionsControllerTest < ActionDispatch::IntegrationTest
     assert_redirected_to edit_collection_path(collections(:writebook))
     assert_equal "Writebook bugs", collections(:writebook).reload.name
     assert_equal users(:kevin, :jz).sort, collections(:writebook).users.sort
-    assert_equal 1.day, entropy_configurations(:writebook_collection).auto_close_period
-    assert_equal 2.days, entropy_configurations(:writebook_collection).auto_reconsider_period
+    assert_equal 1.day, entropy_configurations(:writebook_collection).auto_postpone_period
     assert_not collections(:writebook).all_access?
   end