Feature: Introduce bots (#545)

Co-authored-by: Pranav Raj S <pranavrajs@gmail.com>
Co-authored-by: Sojan Jose <sojan@pepalo.com>

app/models/agent_bot_inbox.rb

@@ -0,0 +1,20 @@
+# == Schema Information
+#
+# Table name: agent_bot_inboxes
+#
+#  id           :bigint           not null, primary key
+#  status       :integer          default("active")
+#  created_at   :datetime         not null
+#  updated_at   :datetime         not null
+#  agent_bot_id :integer
+#  inbox_id     :integer
+#
+
+class AgentBotInbox < ApplicationRecord
+  validates :inbox_id, presence: true
+  validates :agent_bot_id, presence: true
+
+  belongs_to :inbox
+  belongs_to :agent_bot
+  enum status: { active: 0, inactive: 1 }
+end