fix(lab): запускать RAV004 с первого кадра

apps/control-station/src/components/RerunViewport.tsx

@@ -34,7 +34,9 @@ import {
   RECORDED_BASE_POINT_COLOR_KEY,
   canPublishRecordedPlaybackController,
   createRecordedAutoplayGate,
+  createRecordedInitialSeekGate,
   createRecordedOpenWatchdog,
+  shouldReapplyRecordedBlueprint,
 } from "../core/observation/recordedRerunLifecycle";
 import type {
   RecordedPerceptionLayers,
@@ -59,6 +61,7 @@ export {
   attemptRecordedAutoplay,
   canPublishRecordedPlaybackController,
   createRecordedAutoplayGate,
+  createRecordedInitialSeekGate,
   createRecordedOpenWatchdog,
   isRecordedPlaybackFullyBuffered,
   isRecordedPlaybackPresentationReady,
@@ -69,6 +72,7 @@ export {
   recordedPlaybackRangeWhenReady,
   recordedPointColorKey,
   rerunPresentationStatus,
+  shouldReapplyRecordedBlueprint,
   type RecordedPlaybackBufferState,
 } from "../core/observation/recordedRerunLifecycle";
 export {
@@ -828,6 +832,7 @@ export function RerunViewport({
     let publishPlaybackBufferState: (() => void) | null = null;
     let playbackState: RerunPlaybackState | null = null;
     const recordedAutoplay = createRecordedAutoplayGate();
+    const recordedInitialSeek = createRecordedInitialSeekGate();
     let blueprintChannel: RerunBlueprintChannel | null = null;
     let perceptionChannel: RerunBlueprintChannel | null = null;
     let perceptionReceiver: RerunNativeReceiver | null = null;
@@ -1144,9 +1149,25 @@ export function RerunViewport({
         }) => {
             if (
               disposed ||
-              recordingOpened ||
               (isRecordedSource && event.application_id !== "nodedc_mission_core_recorded")
             ) return;
+            if (recordingOpened) {
+              const identity = recordedIdentityRef.current;
+              if (shouldReapplyRecordedBlueprint(
+                recordingOpened,
+                isRecordedSource,
+                recordedBlueprintUrl !== null,
+                identity,
+                event,
+              )) {
+                // A LAB sidecar is a second upstream receiver for the same
+                // recording store. Rerun re-opens that store only after the
+                // sidecar has been decoded, so reapply the canonical blueprint
+                // at this exact boundary instead of racing it during download.
+                setBlueprintChannelRevision((revision) => revision + 1);
+              }
+              return;
+            }
             recordingOpened = true;
             if (!isRecordedSource) {
               // Store discovery only establishes a candidate. Admission is
@@ -1314,6 +1335,23 @@ export function RerunViewport({
                   playing = true;
                 }
               }
+              if (!autoplayWhenReady && !followLive && readyToRender) {
+                recordedInitialSeek.attempt(
+                  viewerStartResolved,
+                  recordedBuffer.fullyBuffered,
+                  presentationReady,
+                  rangeNs,
+                  (initialStartNs) => {
+                    viewer.set_current_time(event.recording_id, timeline, initialStartNs);
+                    currentNs = initialStartNs;
+                  },
+                  initialPlaybackStartSeconds === undefined
+                    ? expectedTimelineStartSeconds === undefined
+                      ? undefined
+                      : expectedTimelineStartSeconds * 1_000_000_000
+                    : initialPlaybackStartSeconds * 1_000_000_000,
+                );
+              }
               emitPlayback({
                 rangeNs: followLive
                   ? rangeNs