feat: initial project scaffold

- React 19 + Vite + TailwindCSS frontend
- Express + TypeScript backend API
- PostgreSQL schema and migrations
- Docker Compose orchestration
- Drone CI/CD pipeline
- Pages: Dashboard, Servers, Containers, Services, Logs, Metrics, Settings

backend/Dockerfile

@@ -0,0 +1,22 @@
+FROM node:20-alpine AS base
+WORKDIR /app
+COPY package*.json ./
+
+FROM base AS deps
+RUN npm ci --only=production
+
+FROM base AS builder
+RUN npm ci
+COPY . .
+RUN npm run build
+
+FROM node:20-alpine AS runner
+WORKDIR /app
+ENV NODE_ENV=production
+RUN addgroup --system --gid 1001 nodejs && adduser --system --uid 1001 appuser
+COPY --from=deps /app/node_modules ./node_modules
+COPY --from=builder /app/dist ./dist
+COPY package.json ./
+USER appuser
+EXPOSE 3001
+CMD ["node", "dist/index.js"]