replace ProspectOS with BrowserOnly build

api/Dockerfile

@@ -0,0 +1,12 @@
+FROM python:3.13-slim
+ENV PYTHONDONTWRITEBYTECODE=1 PYTHONUNBUFFERED=1 PLAYWRIGHT_CHROMIUM_EXECUTABLE_PATH=/usr/bin/chromium
+RUN apt-get update && apt-get install -y --no-install-recommends chromium && rm -rf /var/lib/apt/lists/*
+WORKDIR /app
+COPY api/requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY api/server.py .
+COPY web /app/web
+RUN useradd --system --create-home app && mkdir -p /data && chown -R app:app /app /data
+USER app
+EXPOSE 8000
+CMD ["python", "server.py"]