chore: Clean up migrations (#3613)

Fixes: #3530

app/models/account_user.rb

@@ -21,8 +21,8 @@
 #
 # Foreign Keys
 #
-#  fk_rails_...  (account_id => accounts.id)
-#  fk_rails_...  (user_id => users.id)
+#  fk_rails_...  (account_id => accounts.id) ON DELETE => cascade
+#  fk_rails_...  (user_id => users.id) ON DELETE => cascade
 #
 
 class AccountUser < ApplicationRecord

app/models/agent_bot.rb

@@ -16,7 +16,7 @@
 #
 # Foreign Keys
 #
-#  fk_rails_...  (account_id => accounts.id)
+#  fk_rails_...  (account_id => accounts.id) ON DELETE => cascade
 #
 
 class AgentBot < ApplicationRecord

app/models/campaign.rb

@@ -30,8 +30,8 @@
 #
 # Foreign Keys
 #
-#  fk_rails_...  (account_id => accounts.id)
-#  fk_rails_...  (inbox_id => inboxes.id)
+#  fk_rails_...  (account_id => accounts.id) ON DELETE => cascade
+#  fk_rails_...  (inbox_id => inboxes.id) ON DELETE => cascade
 #
 class Campaign < ApplicationRecord
   validates :account_id, presence: true

app/models/contact_inbox.rb

@@ -21,8 +21,8 @@
 #
 # Foreign Keys
 #
-#  fk_rails_...  (contact_id => contacts.id)
-#  fk_rails_...  (inbox_id => inboxes.id)
+#  fk_rails_...  (contact_id => contacts.id) ON DELETE => cascade
+#  fk_rails_...  (inbox_id => inboxes.id) ON DELETE => cascade
 #
 
 class ContactInbox < ApplicationRecord

app/models/conversation.rb

@@ -36,9 +36,9 @@
 #
 # Foreign Keys
 #
-#  fk_rails_...  (campaign_id => campaigns.id)
-#  fk_rails_...  (contact_inbox_id => contact_inboxes.id)
-#  fk_rails_...  (team_id => teams.id)
+#  fk_rails_...  (campaign_id => campaigns.id) ON DELETE => cascade
+#  fk_rails_...  (contact_inbox_id => contact_inboxes.id) ON DELETE => cascade
+#  fk_rails_...  (team_id => teams.id) ON DELETE => cascade
 #
 
 class Conversation < ApplicationRecord

app/models/csat_survey_response.rb

@@ -23,11 +23,11 @@
 #
 # Foreign Keys
 #
-#  fk_rails_...  (account_id => accounts.id)
-#  fk_rails_...  (assigned_agent_id => users.id)
-#  fk_rails_...  (contact_id => contacts.id)
-#  fk_rails_...  (conversation_id => conversations.id)
-#  fk_rails_...  (message_id => messages.id)
+#  fk_rails_...  (account_id => accounts.id) ON DELETE => cascade
+#  fk_rails_...  (assigned_agent_id => users.id) ON DELETE => cascade
+#  fk_rails_...  (contact_id => contacts.id) ON DELETE => cascade
+#  fk_rails_...  (conversation_id => conversations.id) ON DELETE => cascade
+#  fk_rails_...  (message_id => messages.id) ON DELETE => cascade
 #
 class CsatSurveyResponse < ApplicationRecord
   belongs_to :account

app/models/data_import.rb

@@ -18,7 +18,7 @@
 #
 # Foreign Keys
 #
-#  fk_rails_...  (account_id => accounts.id)
+#  fk_rails_...  (account_id => accounts.id) ON DELETE => cascade
 #
 class DataImport < ApplicationRecord
   belongs_to :account

app/models/mention.rb

@@ -19,8 +19,8 @@
 #
 # Foreign Keys
 #
-#  fk_rails_...  (conversation_id => conversations.id)
-#  fk_rails_...  (user_id => users.id)
+#  fk_rails_...  (conversation_id => conversations.id) ON DELETE => cascade
+#  fk_rails_...  (user_id => users.id) ON DELETE => cascade
 #
 class Mention < ApplicationRecord
   before_validation :ensure_account_id

app/models/note.rb

@@ -18,9 +18,9 @@
 #
 # Foreign Keys
 #
-#  fk_rails_...  (account_id => accounts.id)
-#  fk_rails_...  (contact_id => contacts.id)
-#  fk_rails_...  (user_id => users.id)
+#  fk_rails_...  (account_id => accounts.id) ON DELETE => cascade
+#  fk_rails_...  (contact_id => contacts.id) ON DELETE => cascade
+#  fk_rails_...  (user_id => users.id) ON DELETE => cascade
 #
 class Note < ApplicationRecord
   before_validation :ensure_account_id

app/models/team.rb

@@ -17,7 +17,7 @@
 #
 # Foreign Keys
 #
-#  fk_rails_...  (account_id => accounts.id)
+#  fk_rails_...  (account_id => accounts.id) ON DELETE => cascade
 #
 class Team < ApplicationRecord
   belongs_to :account

app/models/team_member.rb

@@ -16,8 +16,8 @@
 #
 # Foreign Keys
 #
-#  fk_rails_...  (team_id => teams.id)
-#  fk_rails_...  (user_id => users.id)
+#  fk_rails_...  (team_id => teams.id) ON DELETE => cascade
+#  fk_rails_...  (user_id => users.id) ON DELETE => cascade
 #
 class TeamMember < ApplicationRecord
   belongs_to :user