feat(agent): integrate procurement AI agent with Bale bot, real-time draft sync, and git history bundle

ai procurement/Dockerfile

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+# Bale procurement bot — a long-polling worker against tapi.bale.ai.
+# ffmpeg converts Bale voice notes (OGG/Opus) before they are sent to STT.
+FROM python:3.13-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends ffmpeg \
+ && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /srv/bot
+
+# Dependencies first (layer caching). PIP_INDEX_URL overridable like the api image.
+ARG PIP_INDEX_URL=https://pypi.org/simple
+COPY requirements.txt .
+RUN pip install --no-cache-dir -i ${PIP_INDEX_URL} -r requirements.txt
+
+# Application
+COPY app ./app
+COPY tools ./tools
+
+CMD ["python", "-m", "app.main"]