Refactor handler loading to remove unused parameter for compatibility

Author: GrantBirki

lib/hooks/app/api.rb

@@ -69,7 +69,7 @@ def self.create(config:, endpoints:, log:)
                   end
 
                   payload = parse_payload(raw_body, headers, symbolize: config[:symbolize_payload])
-                  handler = load_handler(handler_class_name, config[:handler_plugin_dir])
+                  handler = load_handler(handler_class_name)
                   normalized_headers = config[:normalize_headers] ? Hooks::Utils::Normalize.headers(headers) : headers
 
                   response = handler.call(

lib/hooks/app/helpers.rb

@@ -65,10 +65,9 @@ def parse_payload(raw_body, headers, symbolize: true)
       # Load handler class
       #
       # @param handler_class_name [String] The name of the handler class to load
-      # @param handler_dir [String] The directory containing handler files (unused - kept for compatibility)
       # @return [Object] An instance of the loaded handler class
       # @raise [StandardError] If handler cannot be found
-      def load_handler(handler_class_name, handler_dir = nil)
+      def load_handler(handler_class_name)
         # Get handler class from loaded plugins registry (boot-time loaded only)
         begin
           handler_class = Core::PluginLoader.get_handler_plugin(handler_class_name)