补充AI下次时间接口异常入参与验证记录

internal/smoke/handler/smoke_next_handler.go

@@ -75,7 +75,11 @@ func (h *SmokeHandler) GetNextSmokeTime(c *gin.Context) {
 		return
 	}
 
-	mode := strings.ToLower(strings.TrimSpace(c.DefaultQuery("mode", "auto")))
+	mode, ok := resolveNextSmokeMode(c.Query("mode"))
+	if !ok {
+		c.JSON(http.StatusBadRequest, model.Error(http.StatusBadRequest, "mode 参数错误，应为 auto|ai|default"))
+		return
+	}
 
 	formatPtr := func(t *time.Time) string {
 		if t == nil {
@@ -194,6 +198,20 @@ func dateOnlyLocal(t time.Time) time.Time {
 	return time.Date(local.Year(), local.Month(), local.Day(), 0, 0, 0, 0, time.Local)
 }
 
+func resolveNextSmokeMode(raw string) (string, bool) {
+	mode := strings.ToLower(strings.TrimSpace(raw))
+	if mode == "" {
+		return "auto", true
+	}
+
+	switch mode {
+	case "auto", "ai", "default":
+		return mode, true
+	default:
+		return "", false
+	}
+}
+
 type nextSmokeDefaultResponse struct {
 	LastSmokeAt         string `json:"last_smoke_at,omitempty"`
 	NextSmokeAt         string `json:"next_smoke_at,omitempty"`