Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/services/microsoft/refresh_oauth_token_service.rb

@@ -0,0 +1,9 @@
+# Refer: https://learn.microsoft.com/en-us/entra/identity-platform/configurable-token-lifetimes
+class Microsoft::RefreshOauthTokenService < BaseRefreshOauthTokenService
+  private
+
+  # Builds the OAuth strategy for Microsoft Graph
+  def build_oauth_strategy
+    ::MicrosoftGraphAuth.new(nil, GlobalConfigService.load('AZURE_APP_ID', ''), GlobalConfigService.load('AZURE_APP_SECRET', ''))
+  end
+end