feat: add miband bot application

Dockerfile

@@ -0,0 +1,32 @@
+FROM python:3.11-slim
+
+ARG APP_UID=1000
+ARG APP_GID=1000
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PIP_NO_CACHE_DIR=1
+
+WORKDIR /app
+
+COPY requirements.txt /app/
+RUN pip install -r /app/requirements.txt
+
+COPY mi-fitness-python /app/mi-fitness-python
+RUN pip install -e /app/mi-fitness-python
+
+COPY miband_tracker /app/miband_tracker
+COPY miband_sync.py /app/
+COPY fitness_bot.py /app/
+
+RUN groupadd --gid "${APP_GID}" app \
+    && useradd --uid "${APP_UID}" --gid app --create-home --shell /usr/sbin/nologin app \
+    && mkdir -p /opt/miband-tracker/data \
+    && chown -R app:app /app /opt/miband-tracker
+
+USER app
+
+HEALTHCHECK --interval=60s --timeout=5s --start-period=30s --retries=3 \
+    CMD python -c "import os; from pathlib import Path; p = Path(os.environ.get('DATA_DIR', '/opt/miband-tracker/data')); p.mkdir(parents=True, exist_ok=True); raise SystemExit(0 if os.access(p, os.W_OK) else 1)"
+
+CMD ["python", "-u", "miband_sync.py"]