fix: include pystapi-client in docker image (#87)

## What I'm changing

- Add **pystapi-client** to the docker image, hopefully unbreaking
builds
- Closes #86 

## Checklist

- [x] Tests pass: `uv run pytest`
- [x] Checks pass: `uv run pre-commit --all-files`

Author: gadomski

.dockerignore

@@ -18,3 +18,8 @@
 !/pystapi-validator/README.md
 !/pystapi-validator/src/*
 !/pystapi-validator/tests/*
+
+!/pystapi-client/pyproject.toml
+!/pystapi-client/README.md
+!/pystapi-client/src/*
+!/pystapi-client/tests/*

Dockerfile

@@ -1,11 +1,13 @@
 ARG PYTHON_VERSION=3.12
-ARG BASE_IMAGE=ghcr.io/astral-sh/uv:python${PYTHON_VERSION}-alpine
+ARG BASE_IMAGE=python:${PYTHON_VERSION}-slim-bookworm
 
 FROM ${BASE_IMAGE} AS base
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
 
 WORKDIR /app
 COPY . /app
 
+RUN apt-get update && apt-get install -y --no-install-recommends build-essential libffi-dev && apt-get clean
 RUN uv sync --frozen
 
 CMD ["uv", "run", "fastapi", "dev", "/app/stapi-fastapi/tests/application.py", "--host", "0.0.0.0", "--port", "80"]