Restructure omni services and add Chatwoot research snapshot

research/chatwoot/lib/global_config_service.rb

@@ -0,0 +1,17 @@
+class GlobalConfigService
+  def self.load(config_key, default_value)
+    config = GlobalConfig.get(config_key)[config_key]
+    return config if config.present?
+
+    # To support migrating existing instance relying on env variables
+    # TODO: deprecate this later down the line
+    config_value = ENV.fetch(config_key) { default_value }
+
+    return if config_value.blank?
+
+    i = InstallationConfig.where(name: config_key).first_or_create(value: config_value, locked: false)
+    # To clear a nil value that might have been cached in the previous call
+    GlobalConfig.clear_cache
+    i.value
+  end
+end