fix(perception): isolate vegetation qualification IO

experiments/perception/worker/Invoke-M49TgsIntegratedGraphShadow.ps1

@@ -205,6 +205,10 @@ foreach ($entry in $source.GetEnumerator()) {
 if ((Get-Sha256 $source.SourcePack) -cne [string]$releaseDocument.source_pack_sha256) {
     throw "RAVNOVES00 source pack digest changed"
 }
+$videoSha256 = [string]$releaseDocument.video_sha256
+if ((Get-Sha256 $source.Video) -cne $videoSha256) {
+    throw "RAVNOVES00 video digest changed"
+}
 
 $vegetation = $null
 if ($VegetationLoadGate) {
@@ -405,6 +409,8 @@ try {
             --checkpoint /models/candidate.pth `
             --dataset-root /data/goose `
             --video /source/right.mp4 `
+            --video-sha256 $videoSha256 `
+            --runtime-video-cache /tmp/vegetation-right.mp4 `
             --source-rate-hz $rate `
             --minimum-effective-fps 11.209069 `
             --maximum-completion-p95-ms 125.0 `