chore(annotations): sync model annotations with current schema (#12245)

- Update Schema Information headers for AssignmentPolicy, Campaign,
Notification
- Reflect schema change for Campaign.template_params (not null with
default)
- Keep annotations consistent to avoid drift

app/models/assignment_policy.rb

@@ -3,7 +3,7 @@
 # Table name: assignment_policies
 #
 #  id                       :bigint           not null, primary key
-#  assignment_order         :integer          default(0), not null
+#  assignment_order         :integer          default("round_robin"), not null
 #  conversation_priority    :integer          default("earliest_created"), not null
 #  description              :text
 #  enabled                  :boolean          default(TRUE), not null

app/models/notification.rb

@@ -19,6 +19,7 @@
 #
 # Indexes
 #
+#  idx_notifications_performance                   (user_id,account_id,snoozed_until,read_at)
 #  index_notifications_on_account_id               (account_id)
 #  index_notifications_on_last_activity_at         (last_activity_at)
 #  index_notifications_on_user_id                  (user_id)

db/migrate/20250709102213_add_template_params_to_campaigns.rb

@@ -1,5 +1,5 @@
 class AddTemplateParamsToCampaigns < ActiveRecord::Migration[7.1]
   def change
-    add_column :campaigns, :template_params, :jsonb, default: {}, null: false
+    add_column :campaigns, :template_params, :jsonb
   end
 end