feat: Add sidekiq jobs to monitor applied SLAs (#8828)

Fixes: https://linear.app/chatwoot/issue/CW-2983/sidekiq-jobservice-to-monitor-sla-breach

Co-authored-by: Sojan <sojan@pepalo.com>

enterprise/app/models/applied_sla.rb

@@ -3,7 +3,7 @@
 # Table name: applied_slas
 #
 #  id              :bigint           not null, primary key
-#  sla_status      :string
+#  sla_status      :integer          default("active")
 #  created_at      :datetime         not null
 #  updated_at      :datetime         not null
 #  account_id      :bigint           not null
@@ -20,4 +20,6 @@ class AppliedSla < ApplicationRecord
   belongs_to :account
   belongs_to :sla_policy
   belongs_to :conversation
+
+  enum sla_status: { active: 0, hit: 1, missed: 2 }
 end

enterprise/app/models/enterprise/concerns/account.rb

@@ -3,6 +3,7 @@ module Enterprise::Concerns::Account
 
   included do
     has_many :sla_policies, dependent: :destroy_async
+    has_many :applied_slas, dependent: :destroy_async
 
     def self.add_response_related_associations
       has_many :response_sources, dependent: :destroy_async