Add virtual environment configuration to Dockerfile

Dockerfile

@@ -29,9 +29,15 @@ COPY --chown=user pyproject.toml poetry.lock ./
 # as the Docker container itself is an isolated environment
 RUN poetry config virtualenvs.in-project true
 
+# Set the name of the virtual environment
+RUN poetry config virtualenvs.path $HOME/app/.venv
+
 #  Install dependencies
 RUN poetry install
 
+# Set the .venv folder as the virtual environment directory
+ENV PATH="$HOME/app/.venv/bin:$PATH"
+
 # Copy the current directory contents into the container
 COPY --chown=user . $HOME/app