Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/services/widget/token_service.rb

@@ -0,0 +1,27 @@
+class Widget::TokenService < BaseTokenService
+  DEFAULT_EXPIRY_DAYS = 180
+
+  def generate_token
+    JWT.encode(token_payload, secret_key, algorithm)
+  end
+
+  private
+
+  def token_payload
+    (payload || {}).merge(exp: exp, iat: iat)
+  end
+
+  def iat
+    Time.zone.now.to_i
+  end
+
+  def exp
+    iat + expire_in.days.to_i
+  end
+
+  def expire_in
+    # Value is stored in days, defaulting to 6 months (180 days)
+    token_expiry_value = InstallationConfig.find_by(name: 'WIDGET_TOKEN_EXPIRY')&.value
+    (token_expiry_value.presence || DEFAULT_EXPIRY_DAYS).to_i
+  end
+end