Initial commit: Telegram Management System

Full-stack web application for Telegram management
- Frontend: Vue 3 + Vben Admin
- Backend: NestJS
- Features: User management, group broadcast, statistics

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

marketing-agent/services/safety-guard/Dockerfile

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+FROM node:20-alpine
+
+# Install build dependencies
+RUN apk add --no-cache python3 make g++
+
+# Create app directory
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies
+RUN npm install --production
+
+# Copy app source
+COPY . .
+
+# Create non-root user
+RUN addgroup -g 1001 -S nodejs
+RUN adduser -S nodejs -u 1001
+
+# Create logs directory with proper permissions
+RUN mkdir -p logs && chown -R nodejs:nodejs logs
+USER nodejs
+
+# Expose port
+EXPOSE 3004
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=40s \
+  CMD node healthcheck.js || exit 1
+
+# Start the service
+CMD ["node", "src/app.js"]