docker implementation

frontend/Dockerfile

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+# Frontend Dockerfile for Placebo.mk TanStack React App
+
+# Build stage
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+COPY package-lock.json* ./
+
+# Install dependencies
+RUN npm ci
+
+# Copy source code
+COPY . .
+
+# Build application
+RUN npm run build
+
+# Production stage
+FROM nginx:alpine
+
+# Create non-root user
+RUN addgroup -g 1001 -S nginx && \
+    adduser -S nginx -u 1001 -G nginx
+
+# Copy built application from builder stage
+COPY --from=builder --chown=nginx:nginx /app/dist /usr/share/nginx/html
+
+# Copy nginx configuration
+COPY nginx.conf /etc/nginx/nginx.conf
+
+# Switch to non-root user
+USER nginx
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+  CMD wget --no-verbose --tries=1 --spider http://localhost:80/ || exit 1
+
+# Expose port
+EXPOSE 80
+
+# Start nginx
+CMD ["nginx", "-g", "daemon off;"]