fix: correlate log alert recovery lifecycle

internal/ingest/alert_forward.go

@@ -38,6 +38,7 @@ type AlertReceiveBody struct {
 	Labels         map[string]string `json:"labels"`
 	Agent          string            `json:"agent"`
 	PolicyID       uint              `json:"policy_id"`
+	Fingerprint    string            `json:"fingerprint,omitempty"`
 	State          string            `json:"state,omitempty"`
 	SourceEventKey string            `json:"source_event_key"`
 	TraceID        string            `json:"trace_id"`
@@ -104,6 +105,9 @@ func forwardAlert(body AlertReceiveBody) error {
 		(details.Status != "firing" && details.Status != "resolved") || !validFingerprint(details.Fingerprint) {
 		return fmt.Errorf("Alert 响应缺少完整写入结果，无法确认转发成功；请稍后重试")
 	}
+	if body.Fingerprint != "" && details.Fingerprint != body.Fingerprint {
+		return fmt.Errorf("Alert 返回的告警指纹与请求不一致；请稍后重试")
+	}
 	return nil
 }