test PR #226: sync app package with gpu group, --no-sync at start, clone branch

Dockerfile

@@ -26,13 +26,18 @@ ENV HOME=/home/user
 
 RUN --mount=type=secret,id=GH_TOKEN,mode=0444,required=true \
     git -c "http.https://github.com/.extraheader=Authorization: Basic $(printf 'x-access-token:%s' "$(cat /run/secrets/GH_TOKEN)" | base64 | tr -d '\n')" \
-        clone --single-branch --depth 1 https://github.com/earthspecies/esp-research.git /app/esp-research
+        clone --single-branch --depth 1 --branch fix-hf-app-cuda-torch https://github.com/earthspecies/esp-research.git /app/esp-research
 
-# alp-data is now published on PyPI and pinned in esp-research's pyproject.toml,
-# so uv sync resolves it directly -- no separate clone needed.
+# alp-data is now published on PyPI and is in esp-research's pyproject.toml,
+# so uv sync resolves it directly, no clone needed.
+# Sync this app's package (and its `gpu` group, which pins torch/torchaudio to
+# the cu126 index) so the venv built here is exactly what the app runs with.
 WORKDIR /app/esp-research
-RUN uv sync --frozen
+RUN uv sync --frozen --package naturelm-audio-hf-app --group gpu
 
 WORKDIR /app/esp-research/projects/NatureLM-audio-hf-app
 EXPOSE 7860
-CMD ["uv", "run", "app.py"]
+# --no-sync: never re-resolve at container start. `uv run` would otherwise sync
+# the app package without its `gpu` group and replace the cu126 torch stack with
+# the CUDA 13 wheel from PyPI.
+CMD ["uv", "run", "--no-sync", "app.py"]