修复(#128): 兼容促销规则毫秒时间戳

Co-authored-by: multica-agent <github@multica.ai>

internal/logic/admin/promo/tool.go

@@ -17,11 +17,24 @@ const (
 	subscribeCachePref = "promo:subscribe:"
 )
 
+var (
+	minPromoRuleTime = time.Date(1970, 1, 1, 0, 0, 0, 0, time.UTC)
+	maxPromoRuleTime = time.Date(9999, 12, 31, 23, 59, 59, 0, time.UTC)
+)
+
 func validateRuleInput(ruleType string, params map[string]interface{}, priority int64, startTime, endTime *int64) error {
 	if priority < 0 {
 		return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "priority must be greater than or equal to 0")
 	}
-	if startTime != nil && endTime != nil && *startTime >= *endTime {
+	startAt, err := normalizeRuleTimestamp(startTime)
+	if err != nil {
+		return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "invalid start_time")
+	}
+	endAt, err := normalizeRuleTimestamp(endTime)
+	if err != nil {
+		return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "invalid end_time")
+	}
+	if startAt != nil && endAt != nil && !startAt.Before(*endAt) {
 		return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "start_time must be less than end_time")
 	}
 	switch ruleType {
@@ -93,12 +106,29 @@ func parseParams(data string) map[string]interface{} {
 	return params
 }
 
-func unixPtrToTimePtr(ts *int64) *time.Time {
+func normalizeRuleTimestamp(ts *int64) (*time.Time, error) {
 	if ts == nil || *ts == 0 {
+		return nil, nil
+	}
+	value := *ts
+	var t time.Time
+	if value >= 1_000_000_000_000 || value <= -1_000_000_000_000 {
+		t = time.UnixMilli(value)
+	} else {
+		t = time.Unix(value, 0)
+	}
+	if t.Before(minPromoRuleTime) || t.After(maxPromoRuleTime) {
+		return nil, errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "timestamp out of range")
+	}
+	return &t, nil
+}
+
+func unixPtrToTimePtr(ts *int64) *time.Time {
+	t, err := normalizeRuleTimestamp(ts)
+	if err != nil {
 		return nil
 	}
-	t := time.Unix(*ts, 0)
-	return &t
+	return t
 }
 
 func timePtrToUnixPtr(t *time.Time) *int64 {