feat: /api/membership/plans 返回原价字段(originalYearly/Monthly/Quarterly)

cfc-backend/src/main/java/com/etotem/cfc/controller/MembershipController.java

@@ -331,16 +331,32 @@ public class MembershipController {
                 plan.put("yearly", yearlyStr != null ? Integer.parseInt(yearlyStr) : 131400);
                 plan.put("monthly", null);
                 plan.put("quarterly", null);
+                // 原价（划线价，仅展示）
+                String origYearlyStr = sysConfigService.getValue("member_fee_family_original_yearly");
+                if (origYearlyStr == null) origYearlyStr = sysConfigService.getValue("member_fee_family_original");
+                plan.put("originalYearly", origYearlyStr != null ? Integer.parseInt(origYearlyStr) : null);
+                plan.put("originalMonthly", null);
+                plan.put("originalQuarterly", null);
             } else if ("PREMIUM".equals(level.getLevelCode())) {
                 String yearlyStr = sysConfigService.getValue("member_fee_premium");
                 String monthlyStr = sysConfigService.getValue("member_fee_premium_monthly");
                 plan.put("yearly", yearlyStr != null ? Integer.parseInt(yearlyStr) : 1316800);
                 plan.put("monthly", monthlyStr != null ? Integer.parseInt(monthlyStr) : 131400);
                 plan.put("quarterly", 0);
+                // 原价（划线价，仅展示）
+                String origYearlyStr = sysConfigService.getValue("member_fee_premium_original");
+                String origMonthlyStr = sysConfigService.getValue("member_fee_premium_original_monthly");
+                plan.put("originalYearly", origYearlyStr != null ? Integer.parseInt(origYearlyStr) : null);
+                plan.put("originalMonthly", origMonthlyStr != null ? Integer.parseInt(origMonthlyStr) : null);
+                plan.put("originalQuarterly", null);
             } else {
                 plan.put("monthly", level.getPriceMonthly());
                 plan.put("quarterly", level.getPriceQuarterly());
                 plan.put("yearly", level.getPriceYearly());
+                // 其他等级无原价定义
+                plan.put("originalYearly", null);
+                plan.put("originalMonthly", null);
+                plan.put("originalQuarterly", null);
             }
             plans.add(plan);
         }