add Dockerfile

Dockerfile

@@ -0,0 +1,11 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY bot.py .
+COPY .env .
+
+CMD sh -c "export $(grep -v '^#' .env | xargs) && python bot.py"