Make provider errors more specific

app/models/provider.rb

@@ -61,13 +61,12 @@ class Provider
     # Override to set class-level error transformation for methods using `with_provider_response`
     def default_error_transformer(error)
       if error.is_a?(Faraday::Error)
-        Error.new(
+        self.class::Error.new(
           error.message,
           details: error.response&.dig(:body),
-          provider: self.class.name
         )
       else
-        Error.new(error.message, provider: self.class.name)
+        self.class::Error.new(error.message)
       end
     end