1、优化营收分析，修复当前月没有推广数据时，当前月数据不显示的缺陷；

app/admin/apis/migumanage/migu_admin.go

@@ -2165,19 +2165,55 @@ func (e MiGuDeployService) CalculateRevenueAnalysis(c *gin.Context) {
 	//	return
 	//}
 
+	// 确保有数据
+	if len(result) <= 0 {
+		resp := models.RetentionMonthsResp{}
+		response.OK(c, resp, "查询成功")
+	}
+	earliestMonth := result[0].Month             // 从查询结果中获取最早的月份
+	currentMonth := time.Now().Format("2006-01") // 获取当前月份
+
+	// 生成所有月份列表
+	allMonths := generateMonthRange(earliestMonth, currentMonth)
+
+	// 用 map 记录已有数据
+	monthMap := make(map[string]models.MonthlyRetention)
+	for _, data := range result {
+		monthMap[data.Month] = data
+	}
+
+	// 确保所有月份都有数据
+	var completeResult []models.MonthlyRetention
+	for _, month := range allMonths {
+		if data, exists := monthMap[month]; exists {
+			completeResult = append(completeResult, data)
+		} else {
+			// 补全没有数据的月份
+			completeResult = append(completeResult, models.MonthlyRetention{
+				Month:                month,
+				NewUserCount:         0,
+				ValidUsersCount:      0,
+				RetainedUsersCount:   0,
+				TotalValidUsersCount: 0,
+			})
+		}
+	}
+
+	result = completeResult // 更新最终结果
+
 	// 查询每个月的上个月未退订用户数
 	for i := 0; i < len(result); i++ {
-		currentMonth := result[i].Month
+		tempCurrentMonth := result[i].Month
 
 		// 查询当前月之前所有月份未退订的用户数
-		totalValidUsers, err := GetTotalValidUsers(e.Orm, currentMonth)
+		totalValidUsers, err := GetTotalValidUsers(e.Orm, tempCurrentMonth)
 		if err != nil {
 			response.Error(c, http.StatusInternalServerError, err, "未退订用户查询失败")
 			return
 		}
 
 		// 查询当前月之前所有月份在本月2号之后退订的用户数
-		totalUnsubscribedUsers, err := GetTotalUnsubscribedUsers(e.Orm, currentMonth)
+		totalUnsubscribedUsers, err := GetTotalUnsubscribedUsers(e.Orm, tempCurrentMonth)
 		if err != nil {
 			response.Error(c, http.StatusInternalServerError, err, "退订用户查询失败")
 			return
@@ -2237,6 +2273,18 @@ func (e MiGuDeployService) CalculateRevenueAnalysis(c *gin.Context) {
 	response.OK(c, resp, "查询成功")
 }
 
+// 生成从 start 到 end 之间的所有月份
+func generateMonthRange(start, end string) []string {
+	startTime, _ := time.Parse("2006-01", start)
+	endTime, _ := time.Parse("2006-01", end)
+
+	var months []string
+	for t := startTime; !t.After(endTime); t = t.AddDate(0, 1, 0) {
+		months = append(months, t.Format("2006-01"))
+	}
+	return months
+}
+
 // GetTotalValidUsers 计算所有之前月份的未退订用户总数
 func GetTotalValidUsers(db *gorm.DB, currentMonth string) (int, error) {
 	var totalValidUsers int