Restructure omni services and add Chatwoot research snapshot

research/chatwoot/db/migrate/20250806140002_create_agent_capacity_policies.rb

@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+class CreateAgentCapacityPolicies < ActiveRecord::Migration[7.1]
+  def change
+    create_table :agent_capacity_policies do |t|
+      t.references :account, null: false, index: true
+      t.string :name, null: false, limit: 255
+      t.text :description
+      t.jsonb :exclusion_rules, default: {}, null: false
+
+      t.timestamps
+    end
+  end
+end