Fix Dockerfile uv installation and PATH issues

Dockerfile

@@ -5,9 +5,7 @@ ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \
     PYTHONFAULTHANDLER=1 \
     HOME=/home/user \
-    # PATH will be set by uv if using its venv or if installed to system Python
-    UV_HOME="$HOME/.uv" \
-    PATH="$HOME/.uv/bin:$PATH" \
+    PATH="/home/user/.local/bin:$PATH" \
     PYTHONPATH="$HOME/app:$PYTHONPATH"
 
 # Add non-root user
@@ -17,19 +15,23 @@ RUN useradd -m -u 1000 user
 RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
     curl \
-    && rm -rf /var/lib/apt/lists/* \
-    && curl -LsSf https://astral.sh/uv/install.sh | sh
+    && rm -rf /var/lib/apt/lists/*
 
 # Set working directory
 WORKDIR $HOME/app
 
+# Switch to non-root user for uv installation
+USER user
+
+# Install uv
+RUN curl -LsSf https://astral.sh/uv/install.sh | sh && \
+    echo 'export PATH=$HOME/.local/bin:$PATH' >> $HOME/.bashrc
+
 # Copy project definition
 COPY --chown=user pyproject.toml pyproject.toml
 
-# Install dependencies using uv (into the system Python for simplicity in Docker)
-# Using --system to install into the global site-packages
-# Using --no-cache to reduce layer size slightly
-RUN uv pip install --system --no-cache . 
+# Install dependencies using uv
+RUN ~/.local/bin/uv pip install --system . 
 
 # Copy all application files required for runtime
 COPY --chown=user app.py app.py
@@ -48,9 +50,8 @@ COPY --chown=user public ./public/
 RUN mkdir -p data_sources exports
 
 # Set permissions for the app directory
+USER root
 RUN chown -R user:user $HOME/app
-
-# Switch to non-root user
 USER user
 
 # Run data download script to initialize data sources