Server heavy refactoring 3 (not functionnal)

server/traque-front/Dockerfile

@@ -1,18 +1,31 @@
-# Use Node 22 alpine as parent image
-FROM node:22-alpine AS base
-
+# Étape commune
+FROM node:22-slim AS base
 WORKDIR /app
+ENV NEXT_TELEMETRY_DISABLED=1
+COPY package.json package-lock.json ./
+RUN npm ci
 
-RUN apk add --no-cache libc6-compat
-
-COPY package.json package-lock.json* ./
-RUN npm install
-
+# Étape développement
+FROM base AS dev
+ENV NODE_ENV=development
 COPY . .
-
-ENV NODE_ENV development
-ENV NEXT_TELEMETRY_DISABLED 1
-
 EXPOSE 3000
+CMD ["npm", "run", "dev"]
 
-CMD ["npm", "run", "dev"]
+# Étape builder
+FROM base AS builder
+ENV NODE_ENV=production
+COPY . .
+RUN npm run build
+
+# Étape production
+FROM node:22-slim AS prod
+WORKDIR /app
+ENV NODE_ENV=production
+ENV NEXT_TELEMETRY_DISABLED=1
+COPY --from=builder --chown=node:node /app/.next/standalone ./
+COPY --from=builder --chown=node:node /app/.next/static ./.next/static
+COPY --from=builder --chown=node:node /app/public ./public
+USER node
+EXPOSE 3000
+CMD ["node", "server.js"]