Add Doris Schoolhouse and clean pending homelab changes

home/doris-schoolhouse/Dockerfile

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+FROM python:3.12-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends ffmpeg curl \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY app ./app
+COPY .env.example ./
+COPY README.md ./
+COPY bin ./bin
+
+EXPOSE 8091
+
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8091"]