allow deploypr:prototypes comment to spin up the prototypes build (#6144)

Co-authored-by: James Brunton <jbrunton96@gmail.com>

engine/Dockerfile

@@ -1,9 +1,21 @@
 # syntax=docker/dockerfile:1.5
 FROM ghcr.io/astral-sh/uv:python3.13-bookworm-slim
 
+ARG TASK_VERSION=3.49.1
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends curl ca-certificates \
+    && ARCH=$(dpkg --print-architecture) \
+    && curl -fsSL "https://github.com/go-task/task/releases/download/v${TASK_VERSION}/task_${TASK_VERSION}_linux_${ARCH}.deb" -o /tmp/task.deb \
+    && dpkg -i /tmp/task.deb \
+    && rm /tmp/task.deb \
+    && rm -rf /var/lib/apt/lists/*
+
 WORKDIR /app
 
-COPY pyproject.toml uv.lock ./
+COPY pyproject.toml uv.lock Taskfile.yml ./
+COPY .taskfiles/ ./.taskfiles/
+COPY config/ ./config/
+COPY scripts/ ./scripts/
 RUN --mount=type=cache,target=/root/.cache/uv \
     uv sync --frozen --no-dev
 
@@ -14,4 +26,4 @@ ENV PYTHONUNBUFFERED=1
 
 EXPOSE 5001
 
-CMD ["uv", "run", "uvicorn", "stirling.api.app:app", "--host", "0.0.0.0", "--port", "5001"]
+CMD ["task", "engine:run"]