Add ThreatHunt agent backend/frontend scaffolding

Dockerfile.frontend

@@ -0,0 +1,43 @@
+# ThreatHunt Frontend - Node.js React
+FROM node:18-alpine AS builder
+
+WORKDIR /app
+
+# Copy package files
+COPY frontend/package.json frontend/package-lock.json* ./
+
+# Install dependencies
+RUN npm ci
+
+# Copy source
+COPY frontend/public ./public
+COPY frontend/src ./src
+COPY frontend/tsconfig.json ./
+
+# Build application
+RUN npm run build
+
+# Production stage
+FROM node:18-alpine
+
+WORKDIR /app
+
+# Install serve to serve the static files
+RUN npm install -g serve
+
+# Copy built application from builder
+COPY --from=builder /app/build ./build
+
+# Create non-root user
+RUN addgroup -g 1000 appuser && adduser -D -u 1000 -G appuser appuser
+USER appuser
+
+# Expose port
+EXPOSE 3000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD wget --quiet --tries=1 --spider http://localhost:3000/ || exit 1
+
+# Serve application
+CMD ["serve", "-s", "build", "-l", "3000"]