fix(docker): install rrt-algorithms via editable clone

rrt_algorithms/rrt/ has no __init__.py, so find_packages() excludes
it from the built wheel (same issue as VLABench/utils/). Clone the
repo and install with -e so imports resolve from the source tree.

Made-with: Cursor

docker/Dockerfile.benchmark.vlabench

@@ -30,6 +30,7 @@ FROM huggingface/lerobot-gpu:latest
 # time; those dirs only exist after the Google Drive download. We guard the call
 # so missing dirs return [] instead of crashing.
 RUN git clone --depth 1 https://github.com/OpenMOSS/VLABench.git ~/VLABench && \
+    git clone --depth 1 https://github.com/motion-planning/rrt-algorithms.git ~/rrt-algorithms && \
     python3 -c "\
 import pathlib; \
 p = pathlib.Path.home() / 'VLABench/VLABench/configs/constant.py'; \
@@ -37,10 +38,9 @@ t = p.read_text(); \
 p.write_text(t.replace( \
     'subdirs = os.listdir(xml_dir)', \
     'if not os.path.isdir(xml_dir): return []\n    subdirs = os.listdir(xml_dir)'))" && \
-    uv pip install --no-cache -e ~/VLABench \
+    uv pip install --no-cache -e ~/VLABench -e ~/rrt-algorithms \
       mujoco==3.2.2 dm-control==1.0.22 \
-      open3d colorlog scikit-learn \
-      "rrt-algorithms @ git+https://github.com/motion-planning/rrt-algorithms.git"
+      open3d colorlog scikit-learn
 
 # Overlay the PR's source code on top of the nightly image.
 COPY --chown=user_lerobot:user_lerobot . .