test(producer): track distributed fixture baselines via LFS

.gitattributes

@@ -6,12 +6,15 @@
 
 # Golden baseline videos for regression tests
 packages/producer/tests/*/output/output.mp4 filter=lfs diff=lfs merge=lfs -text
+packages/producer/tests/distributed/*/output/output.mp4 filter=lfs diff=lfs merge=lfs -text
 
 # Source video clips for regression test fixtures (HDR samples, etc.)
 packages/producer/tests/*/src/*.mp4 filter=lfs diff=lfs merge=lfs -text
+packages/producer/tests/distributed/*/src/*.mp4 filter=lfs diff=lfs merge=lfs -text
 
 # Source image assets for regression test fixtures (HDR PNGs, screenshot fixtures, etc.)
 packages/producer/tests/*/src/*.png filter=lfs diff=lfs merge=lfs -text
+packages/producer/tests/distributed/*/src/*.png filter=lfs diff=lfs merge=lfs -text
 
 # GitHub Linguist overrides — HTML files are compositions (user content / templates),
 # not the framework source. Hide them from the repo language stats so TypeScript,

.gitignore

@@ -32,6 +32,7 @@ coverage/
 
 # Producer regression test failures (generated debugging artifacts)
 packages/producer/tests/*/failures/
+packages/producer/tests/distributed/*/failures/
 packages/producer/tests/parity/fixtures/hyperframe.runtime.iife.js
 
 # Player perf test results (generated each run, attached as CI artifact)
@@ -41,6 +42,7 @@ packages/player/tests/perf/results/
 output/
 renders/
 !packages/producer/tests/*/output/
+!packages/producer/tests/distributed/*/output/
 
 # Composition source media (large binaries)
 compositions/**/*.mp4

packages/producer/tests/distributed/mp4-h264-sdr/output/output.mp4

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6c6137ec9cb1117e09d8da79b0dc18d160bdc750d5311e3752c353046ccac7f2
+size 62079