✨ Refactor ResponseHelper and add ResponderHandler

- Modified ResponseHelper.Body signature to return an io.Reader and an error.
- Updated ResponseHandler.ServeHTTP to handle errors from ResponseHelper.Body.
- Implemented JSONResponse and JSONResponseWithStatus functions for easier JSON responses.
- Added comprehensive unit tests for JSON response handling, including error scenarios.
- Extended Helper.ResponderHandler with a new test case to ensure proper error handling and response generation.
- Resolved linting issues related to dynamic error definition and function length in tests.

helper_test.go

@@ -44,6 +44,14 @@ func runHelperTest(t *testing.T, name string, handlerErr, expectedErr error, exp
 				return handlerErr
 			})
 			wrappedHandler = helper.HandlerFunc(mockHandlerFunc)
+		case "ResponderHandler":
+			mockResponseHandler := ezhandler.ResponseHandler(func(r *http.Request) (ezhandler.ResponseHelper, error) {
+				if handlerErr != nil {
+					return nil, handlerErr
+				}
+				return ezhandler.JSONResponse(map[string]string{"status": "ok"}), nil
+			})
+			wrappedHandler = helper.ResponderHandler(mockResponseHandler)
 		}
 
 		wrappedHandler.ServeHTTP(rec, req)
@@ -61,3 +69,8 @@ func TestHelper_HandlerFunc(t *testing.T) {
 	runHelperTest(t, "no error", nil, nil, false, "HandlerFunc")
 	runHelperTest(t, "with error", errTest, errTest, true, "HandlerFunc")
 }
+
+func TestHelper_ResponderHandler(t *testing.T) {
+	runHelperTest(t, "no error", nil, nil, false, "ResponderHandler")
+	runHelperTest(t, "with error", errTest, errTest, true, "ResponderHandler")
+}