Preserve onboard preview recordings across backpressure and share the complete spatial scene

plugins/xgrids-k1/frontend/src/presentation.ts

@@ -1,3 +1,6 @@
+import {finiteMetric} from './spatialSessionModel';
+export {finiteMetric, deviceTelemetry, formatNumber} from './spatialSessionModel';
+export type {K1DeviceTelemetry} from './spatialSessionModel';
 import type { StatusTone } from "@nodedc/ui-react";
 
 import type { BackendStatus } from "@mission-core/plugin-sdk";
@@ -295,9 +298,6 @@ export function eventStatusLabel(status: string): string {
   }[status] ?? "неизвестно";
 }
 
-export function finiteMetric(value: number | null | undefined): number | null {
-  return typeof value === "number" && Number.isFinite(value) ? value : null;
-}
 
 export function pipelineLatency(metrics: XgridsK1Metrics | undefined): number | null {
   if (!metrics) return null;
@@ -308,17 +308,6 @@ export function pipelineLatency(metrics: XgridsK1Metrics | undefined): number |
   return segments.length === 2 ? segments.reduce((total, value) => total + value, 0) : null;
 }
 
-function nonNegativeMetric(value: number | null | undefined): number | null {
-  const finite = finiteMetric(value);
-  return finite !== null && finite >= 0 ? finite : null;
-}
-
-export interface K1DeviceTelemetry {
-  elapsedSeconds: number | null;
-  routeDistanceMeters: number | null;
-  speedMetersPerSecond: number | null;
-}
-
 export interface SpatialActionFailure {
   title: string;
   detail: string;
@@ -336,31 +325,6 @@ export function spatialActionFailure(
     : null;
 }
 
-export function deviceTelemetry(
-  metrics: XgridsK1Metrics | null | undefined,
-): K1DeviceTelemetry {
-  return {
-    elapsedSeconds: nonNegativeMetric(
-      metrics?.device_elapsed_seconds ?? metrics?.elapsed_seconds,
-    ),
-    routeDistanceMeters: nonNegativeMetric(
-      metrics?.device_route_distance_meters ?? metrics?.route_distance_meters,
-    ),
-    speedMetersPerSecond: nonNegativeMetric(
-      metrics?.device_speed_meters_per_second ??
-        metrics?.device_speed_mps ??
-        metrics?.speed_meters_per_second,
-    ),
-  };
-}
-
-export function formatNumber(value: number | null, digits = 1): string {
-  if (value === null) return "—";
-  return value.toLocaleString("ru-RU", {
-    maximumFractionDigits: digits,
-    minimumFractionDigits: digits,
-  });
-}
 
 export function sourceModeLabel(mode: string | null | undefined): string {
   if (mode === "live") return "Реальное время";