feat: pipeline-runner — scaffold docker + deps

pipeline_runner/Dockerfile

@@ -0,0 +1,9 @@
+FROM python:3.12-slim
+WORKDIR /app
+RUN apt-get update && apt-get install -y rclone && rm -rf /var/lib/apt/lists/*
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY tools/ ./tools/
+COPY vendor/ ./vendor/
+COPY pipeline_runner/ ./pipeline_runner/
+CMD ["uvicorn", "pipeline_runner.main:app", "--host", "0.0.0.0", "--port", "8767"]