Remove the internal API

* Bind sessions to identities
* Remove references to the identity token
* Move email changes to identity
* Move account menu into a turbo-frame
* Create tenants from a tenanted route

test/models/user/email_address_changeable_test.rb

@@ -1,39 +0,0 @@
-require "test_helper"
-
-class User::EmailAddressChangeableTest < ActiveSupport::TestCase
-  test "send_email_address_change_confirmation" do
-    user = users(:david)
-    new_email_address = "new@example.com"
-
-    assert_enqueued_jobs 1, only: ActionMailer::MailDeliveryJob do
-      user.send_email_address_change_confirmation(new_email_address)
-    end
-
-    assert_not_equal new_email_address, user.reload.email_address
-  end
-
-  test "generate_email_address_change_token" do
-    user = users(:david)
-    old_email = user.email_address
-    new_email = "david.new@37signals.com"
-
-    token = user.generate_email_address_change_token(to: new_email, expires_in: 30.minutes)
-
-    assert_kind_of String, token
-    assert token.present?
-  end
-
-  test "change_email_address_using_token" do
-    user = users(:david)
-    old_email = user.email_address
-    new_email = "david.new@37signals.com"
-
-    token = user.generate_email_address_change_token(to: new_email, expires_in: 30.minutes)
-
-    assert_equal old_email, user.reload.email_address
-
-    user.change_email_address_using_token(token)
-
-    assert_equal new_email, user.reload.email_address
-  end
-end

test/models/user/identifiable_test.rb

@@ -1,24 +0,0 @@
-require "test_helper"
-
-class User::IdentifiableTest < ActiveSupport::TestCase
-  test "create" do
-    user = User.create!(
-      role: "member",
-      name: "New User",
-      email_address: "newuser@example.com"
-    )
-
-    assert user.identity.present?
-    assert_equal "newuser@example.com", user.identity.email_address
-  end
-
-  test "destroy" do
-    user = User.create!(name: "Bob")
-
-    assert Identity.find_by(email_address: user.email_address)
-
-    user.destroy!
-
-    assert_not Identity.find_by(email_address: user.email_address).memberships.exists?(tenant: user.tenant)
-  end
-end

test/models/user/staff_test.rb

@@ -1,10 +0,0 @@
-require "test_helper"
-
-class User::StaffTest < ActiveSupport::TestCase
-  test "only 37s email addresses are considered staff" do
-    assert users(:kevin).staff?
-    users(:kevin).email_address = "kevin@hey.com"
-
-    assert_not users(:kevin).staff?
-  end
-end