feat: add market opportunity selection step four

src/api/studentTrainingAnswer.js

@@ -136,6 +136,15 @@ export function checkMarketOpportunitySelectionStepThree(payload) {
   return request({ url: "/api/student-training-answers/market-opportunity-selection/step-3/validate", method: "post", data: { scores }, headers: { repeatSubmit: false } });
 }
 
+export function checkMarketOpportunitySelectionStepFour(payload) {
+  const visualizationUrl = String(payload?.visualizationUrl || "").trim();
+  if (isStudentDemo()) {
+    if (!visualizationUrl) return Promise.reject(new Error("请上传数据可视化结果图"));
+    return Promise.resolve({ code: 200, data: { valid: true, message: "校验通过" } });
+  }
+  return request({ url: "/api/student-training-answers/market-opportunity-selection/step-4/validate", method: "post", data: { visualizationUrl }, headers: { repeatSubmit: false } });
+}
+
 function validateNewProductSurveyStepTwoDemo(form) {
   const value = form || {};
   const images = Array.isArray(value.images) ? value.images : [];