improve dockerfiles and adjust code paths

Dockerfile.code

@@ -1,20 +1,25 @@
 FROM python:3.12-slim
 
-RUN apt update && apt install --no-install-recommends --yes git
+SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 
-# Checkout and install dagster libraries needed to run the gRPC server
-# exposing your repository to dagit and dagster-daemon, and to load the DagsterInstance
+RUN apt-get update \
+    && apt-get install --no-install-recommends --yes \
+       curl git \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
 
+ENV PATH=/root/.local/bin:$PATH
+RUN curl -LsSf https://astral.sh/uv/install.sh | sh
+
+WORKDIR /opt/dagster/home
 COPY requirements.txt .
 
-RUN pip install uv
-RUN uv pip install -r requirements.txt --system
-RUN uv pip install polars-lts-cpu --system
+RUN uv pip install -r requirements.txt --system \
+    && uv pip install polars-lts-cpu --system
 
 ARG APP
 ENV APP=$APP
-ENV PYTHONPATH=/apps/$APP/src/:/shared/src/:$PYTHONPATH
-WORKDIR /opt/dagster/home
+ENV PYTHONPATH=/code/apps/$APP/src/:/code/shared/src/:$PYTHONPATH
 
 # Run dagster gRPC server on port 4000
 EXPOSE 4000