Add Dockerfile for uptime-bot deployment

uptime-bot/Dockerfile

@@ -0,0 +1,15 @@
+FROM node:18-alpine
+
+WORKDIR /app
+
+# Kopieer package files
+COPY package*.json ./
+
+# Installeer dependencies
+RUN npm install --production
+
+# Kopieer bot code
+COPY bot.js ./
+
+# Start de bot
+CMD ["node", "bot.js"]