fix uv install (#230)

https://github.com/astral-sh/uv/releases/tag/0.5.0
breaking change to the install root

docker/Dockerfile

@@ -165,6 +165,7 @@ COPY --from=troute_build /ngen/t-route/src/troute-*/dist/*.whl /tmp/
 
 RUN ln -s /dmod/bin/ngen /usr/local/bin/ngen
 
+ENV UV_INSTALL_DIR=/root/.cargo/bin
 RUN curl -LsSf https://astral.sh/uv/install.sh | sh
 ENV PATH="/root/.cargo/bin:${PATH}"
 RUN uv self update && uv venv && \
@@ -192,4 +193,4 @@ ENV PATH="/ngen/.venv/bin:${PATH}"
 COPY --from=troute_build /tmp/troute_url /ngen/troute_url
 COPY --from=ngen_build /tmp/ngen_url /ngen/ngen_url
 
-ENTRYPOINT ["./HelloNGEN.sh"]
+ENTRYPOINT ["./HelloNGEN.sh"]