Big first commit

authentication-zero and first layout

app/models/session.rb

@@ -0,0 +1,11 @@
+class Session < ApplicationRecord
+  belongs_to :user
+
+  before_create do
+    self.user_agent = Current.user_agent
+    self.ip_address = Current.ip_address
+  end
+
+  after_create  { user.events.create! action: "signed_in" }
+  after_destroy { user.events.create! action: "signed_out" }
+end