python v2 - added feartures 1 and 3 - no errors2

Dockerfile

@@ -0,0 +1,36 @@
+# Use official Python base image
+FROM python:3.10-slim
+
+# Set environment variables
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+
+# Set work directory
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy and install Python dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY garminsync/ ./garminsync/
+
+# Create data directory
+RUN mkdir -p /app/data
+
+# Set environment variables from .env file
+ENV ENV_FILE=/app/.env
+ENV DATA_DIR=/app/data
+
+# Expose web UI port
+EXPOSE 8080
+
+# Update entrypoint to support daemon mode
+ENTRYPOINT ["python", "-m", "garminsync.cli"]
+CMD ["--help"]