feat: initial mIRCcloud.com scaffold

- Express + TypeScript backend with IRC connection manager
- React + Vite frontend with mIRC-inspired theme
- Drizzle ORM + PostgreSQL schema (users, connections, channels, messages)
- Redis pub/sub for real-time WebSocket delivery across replicas
- IRC color code parser (16 + 99 extended palette)
- Kubernetes manifests for homecloud deployment
- Multi-stage Dockerfile with non-root user
- docker-compose for local development

Dockerfile

@@ -0,0 +1,50 @@
+# Stage 1: Build client
+FROM node:20-alpine AS client-build
+WORKDIR /app/client
+COPY client/package.json client/package-lock.json* ./
+RUN npm ci
+COPY client/ ./
+RUN npm run build
+
+# Stage 2: Build server
+FROM node:20-alpine AS server-build
+WORKDIR /app/server
+COPY server/package.json server/package-lock.json* ./
+RUN npm ci
+COPY server/ ./
+RUN npm run build
+
+# Stage 3: Production
+FROM node:20-alpine AS production
+RUN apk add --no-cache tini curl
+
+WORKDIR /app
+
+# Create non-root user
+RUN addgroup -g 1001 -S appgroup && \
+    adduser -S appuser -u 1001 -G appgroup
+
+# Copy server production dependencies
+COPY server/package.json server/package-lock.json* ./
+RUN npm ci --omit=dev && npm cache clean --force
+
+# Copy server build output
+COPY --from=server-build /app/server/dist ./dist
+
+# Copy client build output to be served as static files
+COPY --from=client-build /app/client/dist ./public
+
+# Create data directory for uploads
+RUN mkdir -p /data/uploads && chown -R appuser:appgroup /data/uploads
+
+# Switch to non-root user
+USER appuser
+
+EXPOSE 3000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
+  CMD curl -f http://localhost:3000/api/health || exit 1
+
+ENTRYPOINT ["/sbin/tini", "--"]
+CMD ["node", "dist/index.js"]