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/api-gateway/Dockerfile

@@ -0,0 +1,53 @@
+# Build stage
+FROM node:18-alpine AS builder
+
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install all dependencies (including dev) for building
+RUN npm ci
+
+# Copy source code
+COPY . .
+
+# Production stage
+FROM node:18-alpine
+
+WORKDIR /app
+
+# Install dumb-init for proper signal handling
+RUN apk add --no-cache dumb-init
+
+# Create non-root user
+RUN addgroup -g 1001 -S nodejs && \
+    adduser -S nodejs -u 1001
+
+# Copy package files and install production dependencies only
+COPY package*.json ./
+RUN npm ci --only=production && \
+    npm cache clean --force
+
+# Copy application code
+COPY --chown=nodejs:nodejs . .
+
+# Create necessary directories with proper permissions
+RUN mkdir -p logs uploads && \
+    chown -R nodejs:nodejs logs uploads
+
+# Switch to non-root user
+USER nodejs
+
+# Expose port
+EXPOSE 3000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=40s --retries=3 \
+  CMD node healthcheck.js || exit 1
+
+# Use dumb-init to handle signals properly
+ENTRYPOINT ["dumb-init", "--"]
+
+# Start application
+CMD ["node", "src/app.js"]